Imaging Settings - Definitions - FHIR Osiris Implementation Guide v2.1.0

FHIR Osiris Implementation Guide - Local Development build (v2.1.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

Extension: ImagingSettings - Detailed Descriptions

Draft as of 2024-03-21

Definitions for the imaging-settings extension.

Differential Elements Table
Key Elements Table
Snapshot Elements Table

Guidance on how to interpret the contents of this table can be found here

0. Extension
Definition	Imaging Settings.
Short	Imaging Settings
2. Extension.extension
Control	4..?
4. Extension.extension:slice_thickness
Slice Name	slice_thickness
Definition	Nominal thickness of the slice, in mm. Dicom Tag (0018,0050)
Short	Thickness of the slice in mm
Control	1..1
Must Support	true
6. Extension.extension:slice_thickness.extension
Control	0..0
8. Extension.extension:slice_thickness.url
Fixed Value	`slice_thickness`
10. Extension.extension:slice_thickness.value[x]
Control	1..?
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
12. Extension.extension:pixel_spacing
Slice Name	pixel_spacing
Definition	Physical distance between the centers of each two-dimensional pixel, specified by two numerical values. Dicom Tag (0028,0030)
Short	Pixel spacing
Control	1..1
Must Support	true
14. Extension.extension:pixel_spacing.extension
Control	0..0
16. Extension.extension:pixel_spacing.url
Fixed Value	`pixel_spacing`
18. Extension.extension:pixel_spacing.value[x]
Control	1..?
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
20. Extension.extension:field_of_view
Slice Name	field_of_view
Definition	The field of view (FOV) is defined as the dimensions of the exact anatomical region included in a scan in mm.
Short	Field of view
Control	0..1
Must Support	true
22. Extension.extension:field_of_view.extension
Control	0..0
24. Extension.extension:field_of_view.url
Fixed Value	`field_of_view`
26. Extension.extension:field_of_view.value[x]
Type	integer
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
28. Extension.extension:rows
Slice Name	rows
Definition	Number of pixels in the row direction of the reconstructed matrix. Dicom Tag (0028,0010)
Short	Number of pixels in the direction of the row
Control	1..1
Must Support	true
30. Extension.extension:rows.extension
Control	0..0
32. Extension.extension:rows.url
Fixed Value	`rows`
34. Extension.extension:rows.value[x]
Control	1..?
Type	integer
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
36. Extension.extension:columns
Slice Name	columns
Definition	Number of pixels in the column direction of the reconstructed matrix. Dicom Tag (0028,0011)
Short	Number of pixels in the direction of the column
Control	1..1
Must Support	true
38. Extension.extension:columns.extension
Control	0..0
40. Extension.extension:columns.url
Fixed Value	`columns`
42. Extension.extension:columns.value[x]
Control	1..?
Type	integer
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
44. Extension.extension:imaging_injection
Slice Name	imaging_injection
Short	Qualification of the medical image contrast injection
Control	0..1
Must Support	true
46. Extension.extension:imaging_injection.extension
Control	0..0
48. Extension.extension:imaging_injection.url
Fixed Value	`imaging_injection`
50. Extension.extension:imaging_injection.value[x]
[x] Note	See Choice of Data Types for further information about how to use [x]
Slicing	This element introduces a set of slices on `Extension.extension.value[x]`. The slices are unordered and Open, and can be differentiated using the following discriminators: type @ $this
52. Extension.extension:imaging_injection.value[x]:valueReference
Slice Name	valueReference
Control	0..1
Type	Reference(Imaging Study Injection)
[x] Note	See Choice of Data Types for further information about how to use [x]
54. Extension.extension:mr_image
Slice Name	mr_image
Control	0..1
56. Extension.extension:mr_image.extension
Control	9..?
58. Extension.extension:mr_image.extension:sequence_name
Slice Name	sequence_name
Definition	Type of pulse sequence. Dicom Tag (0018,0024)
Short	Type of pulse sequence
Control	1..1
Must Support	true
60. Extension.extension:mr_image.extension:sequence_name.extension
Control	0..0
62. Extension.extension:mr_image.extension:sequence_name.url
Fixed Value	`sequence_name`
64. Extension.extension:mr_image.extension:sequence_name.value[x]
Control	1..?
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
66. Extension.extension:mr_image.extension:magnetic_field_strength
Slice Name	magnetic_field_strength
Definition	Nominal field strength of the magnet, in Tesla. Dicom Tag (0018,0087)
Short	Nominal field strength
Control	1..1
Must Support	true
68. Extension.extension:mr_image.extension:magnetic_field_strength.extension
Control	0..0
70. Extension.extension:mr_image.extension:magnetic_field_strength.url
Fixed Value	`magnetic_field_strength`
72. Extension.extension:mr_image.extension:magnetic_field_strength.value[x]
Control	1..?
Type	decimal
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
74. Extension.extension:mr_image.extension:mr_acquisition_type
Slice Name	mr_acquisition_type
Definition	Describe the type of acquisition, particularly the number of dimension. Dicom Tag (0018,0023)
Short	Description of the type of acquisition
Control	1..1
Must Support	true
76. Extension.extension:mr_image.extension:mr_acquisition_type.extension
Control	0..0
78. Extension.extension:mr_image.extension:mr_acquisition_type.url
Fixed Value	`mr_acquisition_type`
80. Extension.extension:mr_image.extension:mr_acquisition_type.value[x]
Control	1..?
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
82. Extension.extension:mr_image.extension:repetition_time
Slice Name	repetition_time
Definition	Repetition time in ms. Dicom Tag (0018,0080)
Short	Repetition time
Control	1..1
Must Support	true
84. Extension.extension:mr_image.extension:repetition_time.extension
Control	0..0
86. Extension.extension:mr_image.extension:repetition_time.url
Fixed Value	`repetition_time`
88. Extension.extension:mr_image.extension:repetition_time.value[x]
Control	1..?
Type	decimal
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
90. Extension.extension:mr_image.extension:echo_time
Slice Name	echo_time
Definition	Echo time in ms. Dicom Tag (0018,0081)
Short	Echo time
Control	1..1
Must Support	true
92. Extension.extension:mr_image.extension:echo_time.extension
Control	0..0
94. Extension.extension:mr_image.extension:echo_time.url
Fixed Value	`echo_time`
96. Extension.extension:mr_image.extension:echo_time.value[x]
Control	1..?
Type	decimal
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
98. Extension.extension:mr_image.extension:imaging_frequency
Slice Name	imaging_frequency
Definition	Precession frequency in MHz of the target core. Dicom Tag (0018,0084)
Short	Precession frequency
Control	1..1
Must Support	true
100. Extension.extension:mr_image.extension:imaging_frequency.extension
Control	0..0
102. Extension.extension:mr_image.extension:imaging_frequency.url
Fixed Value	`imaging_frequency`
104. Extension.extension:mr_image.extension:imaging_frequency.value[x]
Control	1..?
Type	decimal
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
106. Extension.extension:mr_image.extension:flip_angle
Slice Name	flip_angle
Definition	Flip angle of the RF pulse in degrees impacting the T1 weighting. Dicom Tag (0018,0024) / (0018,1314)
Short	Flip angle
Control	1..1
Must Support	true
108. Extension.extension:mr_image.extension:flip_angle.extension
Control	0..0
110. Extension.extension:mr_image.extension:flip_angle.url
Fixed Value	`flip_angle`
112. Extension.extension:mr_image.extension:flip_angle.value[x]
Control	1..?
Type	decimal
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
114. Extension.extension:mr_image.extension:inversion_time
Slice Name	inversion_time
Definition	Period between the middle of the RF inversion pulse and the middle of the excitation pulse to detect the amount of longitudinal magnetization. Dicom Tag (0018,0082)
Short	Period between the middle of the RF inversion pulse and the middle of the excitation pulse
Control	1..1
Must Support	true
116. Extension.extension:mr_image.extension:inversion_time.extension
Control	0..0
118. Extension.extension:mr_image.extension:inversion_time.url
Fixed Value	`inversion_time`
120. Extension.extension:mr_image.extension:inversion_time.value[x]
Control	1..?
Type	decimal
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
122. Extension.extension:mr_image.extension:receive_coil_name
Slice Name	receive_coil_name
Definition	Receive coil name. Dicom Tag (0018,1250)
Short	Receive coil name
Control	1..1
Must Support	true
124. Extension.extension:mr_image.extension:receive_coil_name.extension
Control	0..0
126. Extension.extension:mr_image.extension:receive_coil_name.url
Fixed Value	`receive_coil_name`
128. Extension.extension:mr_image.extension:receive_coil_name.value[x]
Control	1..?
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
130. Extension.extension:mr_image.url
Fixed Value	`mr_image`
132. Extension.extension:mr_image.value[x]
Control	0..0
134. Extension.extension:ct_image
Slice Name	ct_image
Control	0..1
136. Extension.extension:ct_image.extension
Control	5..?
138. Extension.extension:ct_image.extension:kvp
Slice Name	kvp
Definition	Peak kilovoltage of the voltage produced by the X-ray generator. Dicom Tag (0018,0060)
Short	Peak kilovoltage produced by the X-ray generator
Control	0..1
Must Support	true
140. Extension.extension:ct_image.extension:kvp.extension
Control	0..0
142. Extension.extension:ct_image.extension:kvp.url
Fixed Value	`kvp`
144. Extension.extension:ct_image.extension:kvp.value[x]
Type	integer
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
146. Extension.extension:ct_image.extension:xray_tube_current
Slice Name	xray_tube_current
Definition	X-ray tube current in mA. Dicom Tag (0018,1151)
Short	X-ray tube current in mA
Control	1..1
Must Support	true
148. Extension.extension:ct_image.extension:xray_tube_current.extension
Control	0..0
150. Extension.extension:ct_image.extension:xray_tube_current.url
Fixed Value	`xray_tube_current`
152. Extension.extension:ct_image.extension:xray_tube_current.value[x]
Control	1..?
Type	integer
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
154. Extension.extension:ct_image.extension:exposure_time
Slice Name	exposure_time
Definition	X-ray exposure time in ms. Dicom Tag (0018,1150)
Short	X-ray exposure time in ms
Control	1..1
Must Support	true
156. Extension.extension:ct_image.extension:exposure_time.extension
Control	0..0
158. Extension.extension:ct_image.extension:exposure_time.url
Fixed Value	`exposure_time`
160. Extension.extension:ct_image.extension:exposure_time.value[x]
Control	1..?
Type	integer
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
162. Extension.extension:ct_image.extension:spiral_pitch_factor
Slice Name	spiral_pitch_factor
Definition	'Spiral Pitch' - Ratio between the table feed per rotation and the total width of the collimation. Dicom Tag (0018,9311)
Short	'Spiral Pitch' - Ratio between the table feed per rotation and the total width of the collimation
Control	1..1
Must Support	true
164. Extension.extension:ct_image.extension:spiral_pitch_factor.extension
Control	0..0
166. Extension.extension:ct_image.extension:spiral_pitch_factor.url
Fixed Value	`spiral_pitch_factor`
168. Extension.extension:ct_image.extension:spiral_pitch_factor.value[x]
Control	1..?
Type	decimal
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
170. Extension.extension:ct_image.extension:filter_type
Slice Name	filter_type
Definition	Filter type. DicomTag (0018,1160)
Short	Filter type
Control	1..1
Must Support	true
172. Extension.extension:ct_image.extension:filter_type.extension
Control	0..0
174. Extension.extension:ct_image.extension:filter_type.url
Fixed Value	`filter_type`
176. Extension.extension:ct_image.extension:filter_type.value[x]
Control	1..?
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
178. Extension.extension:ct_image.extension:convolution_kernel
Slice Name	convolution_kernel
Definition	A label describing the convolution kernel or algorithm used to recontruct the data. Dicom Tag (0018,1210)
Short	Convolution kernel or algorithm
Control	1..1
Must Support	true
180. Extension.extension:ct_image.extension:convolution_kernel.extension
Control	0..0
182. Extension.extension:ct_image.extension:convolution_kernel.url
Fixed Value	`convolution_kernel`
184. Extension.extension:ct_image.extension:convolution_kernel.value[x]
Control	1..?
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
186. Extension.extension:ct_image.url
Fixed Value	`ct_image`
188. Extension.extension:ct_image.value[x]
Control	0..0
190. Extension.extension:dx_image
Slice Name	dx_image
Control	0..1
192. Extension.extension:dx_image.extension
Control	4..?
194. Extension.extension:dx_image.extension:image_laterality
Slice Name	image_laterality
Definition	Examination of the laterality of the body part examined. Dicom Tag (0020,0062)
Short	Laterality of the body part
Control	1..1
Must Support	true
196. Extension.extension:dx_image.extension:image_laterality.extension
Control	0..0
198. Extension.extension:dx_image.extension:image_laterality.url
Fixed Value	`image_laterality`
200. Extension.extension:dx_image.extension:image_laterality.value[x]
Control	1..?
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
202. Extension.extension:dx_image.extension:patient_orientation
Slice Name	patient_orientation
Definition	Patient orientation. Dicom Tag (0020,0020)
Short	Patient orientation
Control	0..1
Must Support	true
204. Extension.extension:dx_image.extension:patient_orientation.extension
Control	0..0
206. Extension.extension:dx_image.extension:patient_orientation.url
Fixed Value	`patient_orientation`
208. Extension.extension:dx_image.extension:patient_orientation.value[x]
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
210. Extension.extension:dx_image.extension:kvp
Slice Name	kvp
Definition	Peak kilovoltage of the voltage produced by the X-ray generator. Dicom Tag (0008,0060)
Short	Peak in kilovoltage of the X-ray generator used
Control	1..1
Must Support	true
212. Extension.extension:dx_image.extension:kvp.extension
Control	0..0
214. Extension.extension:dx_image.extension:kvp.url
Fixed Value	`kvp`
216. Extension.extension:dx_image.extension:kvp.value[x]
Control	1..?
Type	integer
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
218. Extension.extension:dx_image.extension:exposure
Slice Name	exposure
Definition	The exposure expressed in mAs, for example calculated from the exposure time and the X-ray tube current. DicomTag (0018,1152)
Short	The exposure expressed in mAs
Control	1..1
Must Support	true
220. Extension.extension:dx_image.extension:exposure.extension
Control	0..0
222. Extension.extension:dx_image.extension:exposure.url
Fixed Value	`exposure`
224. Extension.extension:dx_image.extension:exposure.value[x]
Control	1..?
Type	integer
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
226. Extension.extension:dx_image.extension:exposure_time
Slice Name	exposure_time
Short	Duration of X-Ray exposure in ms. DicomTag (0018,1150)
Control	1..1
Must Support	true
228. Extension.extension:dx_image.extension:exposure_time.extension
Control	0..0
230. Extension.extension:dx_image.extension:exposure_time.url
Fixed Value	`exposure_time`
232. Extension.extension:dx_image.extension:exposure_time.value[x]
Control	1..?
Type	integer
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
234. Extension.extension:dx_image.url
Fixed Value	`dx_image`
236. Extension.extension:dx_image.value[x]
Control	0..0
238. Extension.extension:pt_nm_image
Slice Name	pt_nm_image
Control	0..1
240. Extension.extension:pt_nm_image.extension
Control	3..?
242. Extension.extension:pt_nm_image.extension:attenuation_correction_method
Slice Name	attenuation_correction_method
Definition	Attenuation correction method. Dicom Tag (0054,1101)
Short	Attenuation correction method
Control	1..1
Must Support	true
244. Extension.extension:pt_nm_image.extension:attenuation_correction_method.extension
Control	0..0
246. Extension.extension:pt_nm_image.extension:attenuation_correction_method.url
Fixed Value	`attenuation_correction_method`
248. Extension.extension:pt_nm_image.extension:attenuation_correction_method.value[x]
Control	1..?
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
250. Extension.extension:pt_nm_image.extension:reconstruction_method
Slice Name	reconstruction_method
Definition	Reconstruction method e.g. 2D filtered back projection, 2D iterative, 3D PROMIS, 3D FAVOR, 3D iterative. Dicom Tag (0054,1103)
Short	Reconstruction method
Control	1..1
Must Support	true
252. Extension.extension:pt_nm_image.extension:reconstruction_method.extension
Control	0..0
254. Extension.extension:pt_nm_image.extension:reconstruction_method.url
Fixed Value	`reconstruction_method`
256. Extension.extension:pt_nm_image.extension:reconstruction_method.value[x]
Control	1..?
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
258. Extension.extension:pt_nm_image.extension:scatter_correction_method
Slice Name	scatter_correction_method
Definition	Scattering correction method. For example, convolution-subtraction, dual energy window, model based, use of attenuation data. Dicom Tag (0054,1105)
Short	Scattering correction method
Control	1..1
Must Support	true
260. Extension.extension:pt_nm_image.extension:scatter_correction_method.extension
Control	0..0
262. Extension.extension:pt_nm_image.extension:scatter_correction_method.url
Fixed Value	`scatter_correction_method`
264. Extension.extension:pt_nm_image.extension:scatter_correction_method.value[x]
Control	1..?
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
266. Extension.extension:pt_nm_image.url
Fixed Value	`pt_nm_image`
268. Extension.extension:pt_nm_image.value[x]
Control	0..0
270. Extension.url
Fixed Value	`https://build.fhir.org/ig/arkhn/arkhn-ig-osiris/StructureDefinition/imaging-settings`
272. Extension.value[x]
Control	0..0

Guidance on how to interpret the contents of this table can be found here

0. Extension
Definition	Imaging Settings. Optional Extension Element - found in all resources.
Short	Imaging SettingsOptional Extensions Element
Control	0..* This element is affected by the following invariants: ele-1
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
2. Extension.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	40..* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
4. Extension.extension:slice_thickness
Slice Name	slice_thickness
Definition	Nominal thickness of the slice, in mm. Dicom Tag (0018,0050)
Short	Thickness of the slice in mmAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
6. Extension.extension:slice_thickness.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
8. Extension.extension:slice_thickness.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`slice_thickness`
10. Extension.extension:slice_thickness.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	string, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
12. Extension.extension:pixel_spacing
Slice Name	pixel_spacing
Definition	Physical distance between the centers of each two-dimensional pixel, specified by two numerical values. Dicom Tag (0028,0030)
Short	Pixel spacingAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
14. Extension.extension:pixel_spacing.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
16. Extension.extension:pixel_spacing.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`pixel_spacing`
18. Extension.extension:pixel_spacing.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	string, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
20. Extension.extension:field_of_view
Slice Name	field_of_view
Definition	The field of view (FOV) is defined as the dimensions of the exact anatomical region included in a scan in mm.
Short	Field of viewAdditional content defined by implementations
Control	0..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
22. Extension.extension:field_of_view.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
24. Extension.extension:field_of_view.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`field_of_view`
26. Extension.extension:field_of_view.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..1 This element is affected by the following invariants: ele-1
Type	integer, date, Meta, Address, Attachment, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
28. Extension.extension:rows
Slice Name	rows
Definition	Number of pixels in the row direction of the reconstructed matrix. Dicom Tag (0028,0010)
Short	Number of pixels in the direction of the rowAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
30. Extension.extension:rows.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
32. Extension.extension:rows.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`rows`
34. Extension.extension:rows.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	integer, date, Meta, Address, Attachment, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
36. Extension.extension:columns
Slice Name	columns
Definition	Number of pixels in the column direction of the reconstructed matrix. Dicom Tag (0028,0011)
Short	Number of pixels in the direction of the columnAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
38. Extension.extension:columns.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
40. Extension.extension:columns.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`columns`
42. Extension.extension:columns.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	integer, date, Meta, Address, Attachment, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
44. Extension.extension:imaging_injection
Slice Name	imaging_injection
Definition	An Extension
Short	Qualification of the medical image contrast injectionAdditional content defined by implementations
Control	0..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
46. Extension.extension:imaging_injection.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
48. Extension.extension:imaging_injection.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`imaging_injection`
50. Extension.extension:imaging_injection.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..1 This element is affected by the following invariants: ele-1
Type	Reference, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
Slicing	This element introduces a set of slices on `Extension.extension.value[x]`. The slices are unordered and Closed, and can be differentiated using the following discriminators: type @ $this
52. Extension.extension:imaging_injection.value[x]:valueReference
Slice Name	valueReference
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..1 This element is affected by the following invariants: ele-1
Type	Reference(Imaging Study Injection), date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
54. Extension.extension:mr_image
Slice Name	mr_image
Definition	An Extension
Short	ExtensionAdditional content defined by implementations
Control	0..1* This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
56. Extension.extension:mr_image.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	90..* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
58. Extension.extension:mr_image.extension:sequence_name
Slice Name	sequence_name
Definition	Type of pulse sequence. Dicom Tag (0018,0024)
Short	Type of pulse sequenceAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
60. Extension.extension:mr_image.extension:sequence_name.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
62. Extension.extension:mr_image.extension:sequence_name.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`sequence_name`
64. Extension.extension:mr_image.extension:sequence_name.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	string, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
66. Extension.extension:mr_image.extension:magnetic_field_strength
Slice Name	magnetic_field_strength
Definition	Nominal field strength of the magnet, in Tesla. Dicom Tag (0018,0087)
Short	Nominal field strengthAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
68. Extension.extension:mr_image.extension:magnetic_field_strength.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
70. Extension.extension:mr_image.extension:magnetic_field_strength.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`magnetic_field_strength`
72. Extension.extension:mr_image.extension:magnetic_field_strength.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	decimal, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
74. Extension.extension:mr_image.extension:mr_acquisition_type
Slice Name	mr_acquisition_type
Definition	Describe the type of acquisition, particularly the number of dimension. Dicom Tag (0018,0023)
Short	Description of the type of acquisitionAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
76. Extension.extension:mr_image.extension:mr_acquisition_type.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
78. Extension.extension:mr_image.extension:mr_acquisition_type.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`mr_acquisition_type`
80. Extension.extension:mr_image.extension:mr_acquisition_type.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	string, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
82. Extension.extension:mr_image.extension:repetition_time
Slice Name	repetition_time
Definition	Repetition time in ms. Dicom Tag (0018,0080)
Short	Repetition timeAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
84. Extension.extension:mr_image.extension:repetition_time.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
86. Extension.extension:mr_image.extension:repetition_time.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`repetition_time`
88. Extension.extension:mr_image.extension:repetition_time.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	decimal, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
90. Extension.extension:mr_image.extension:echo_time
Slice Name	echo_time
Definition	Echo time in ms. Dicom Tag (0018,0081)
Short	Echo timeAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
92. Extension.extension:mr_image.extension:echo_time.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
94. Extension.extension:mr_image.extension:echo_time.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`echo_time`
96. Extension.extension:mr_image.extension:echo_time.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	decimal, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
98. Extension.extension:mr_image.extension:imaging_frequency
Slice Name	imaging_frequency
Definition	Precession frequency in MHz of the target core. Dicom Tag (0018,0084)
Short	Precession frequencyAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
100. Extension.extension:mr_image.extension:imaging_frequency.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
102. Extension.extension:mr_image.extension:imaging_frequency.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`imaging_frequency`
104. Extension.extension:mr_image.extension:imaging_frequency.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	decimal, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
106. Extension.extension:mr_image.extension:flip_angle
Slice Name	flip_angle
Definition	Flip angle of the RF pulse in degrees impacting the T1 weighting. Dicom Tag (0018,0024) / (0018,1314)
Short	Flip angleAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
108. Extension.extension:mr_image.extension:flip_angle.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
110. Extension.extension:mr_image.extension:flip_angle.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`flip_angle`
112. Extension.extension:mr_image.extension:flip_angle.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	decimal, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
114. Extension.extension:mr_image.extension:inversion_time
Slice Name	inversion_time
Definition	Period between the middle of the RF inversion pulse and the middle of the excitation pulse to detect the amount of longitudinal magnetization. Dicom Tag (0018,0082)
Short	Period between the middle of the RF inversion pulse and the middle of the excitation pulseAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
116. Extension.extension:mr_image.extension:inversion_time.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
118. Extension.extension:mr_image.extension:inversion_time.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`inversion_time`
120. Extension.extension:mr_image.extension:inversion_time.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	decimal, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
122. Extension.extension:mr_image.extension:receive_coil_name
Slice Name	receive_coil_name
Definition	Receive coil name. Dicom Tag (0018,1250)
Short	Receive coil nameAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
124. Extension.extension:mr_image.extension:receive_coil_name.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
126. Extension.extension:mr_image.extension:receive_coil_name.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`receive_coil_name`
128. Extension.extension:mr_image.extension:receive_coil_name.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	string, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
130. Extension.extension:mr_image.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`mr_image`
132. Extension.extension:mr_image.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..01 This element is affected by the following invariants: ele-1
Type	Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
134. Extension.extension:ct_image
Slice Name	ct_image
Definition	An Extension
Short	ExtensionAdditional content defined by implementations
Control	0..1* This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
136. Extension.extension:ct_image.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	50..* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
138. Extension.extension:ct_image.extension:kvp
Slice Name	kvp
Definition	Peak kilovoltage of the voltage produced by the X-ray generator. Dicom Tag (0018,0060)
Short	Peak kilovoltage produced by the X-ray generatorAdditional content defined by implementations
Control	0..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
140. Extension.extension:ct_image.extension:kvp.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
142. Extension.extension:ct_image.extension:kvp.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`kvp`
144. Extension.extension:ct_image.extension:kvp.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..1 This element is affected by the following invariants: ele-1
Type	integer, date, Meta, Address, Attachment, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
146. Extension.extension:ct_image.extension:xray_tube_current
Slice Name	xray_tube_current
Definition	X-ray tube current in mA. Dicom Tag (0018,1151)
Short	X-ray tube current in mAAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
148. Extension.extension:ct_image.extension:xray_tube_current.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
150. Extension.extension:ct_image.extension:xray_tube_current.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`xray_tube_current`
152. Extension.extension:ct_image.extension:xray_tube_current.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	integer, date, Meta, Address, Attachment, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
154. Extension.extension:ct_image.extension:exposure_time
Slice Name	exposure_time
Definition	X-ray exposure time in ms. Dicom Tag (0018,1150)
Short	X-ray exposure time in msAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
156. Extension.extension:ct_image.extension:exposure_time.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
158. Extension.extension:ct_image.extension:exposure_time.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`exposure_time`
160. Extension.extension:ct_image.extension:exposure_time.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	integer, date, Meta, Address, Attachment, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
162. Extension.extension:ct_image.extension:spiral_pitch_factor
Slice Name	spiral_pitch_factor
Definition	'Spiral Pitch' - Ratio between the table feed per rotation and the total width of the collimation. Dicom Tag (0018,9311)
Short	'Spiral Pitch' - Ratio between the table feed per rotation and the total width of the collimationAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
164. Extension.extension:ct_image.extension:spiral_pitch_factor.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
166. Extension.extension:ct_image.extension:spiral_pitch_factor.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`spiral_pitch_factor`
168. Extension.extension:ct_image.extension:spiral_pitch_factor.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	decimal, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
170. Extension.extension:ct_image.extension:filter_type
Slice Name	filter_type
Definition	Filter type. DicomTag (0018,1160)
Short	Filter typeAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
172. Extension.extension:ct_image.extension:filter_type.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
174. Extension.extension:ct_image.extension:filter_type.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`filter_type`
176. Extension.extension:ct_image.extension:filter_type.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	string, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
178. Extension.extension:ct_image.extension:convolution_kernel
Slice Name	convolution_kernel
Definition	A label describing the convolution kernel or algorithm used to recontruct the data. Dicom Tag (0018,1210)
Short	Convolution kernel or algorithmAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
180. Extension.extension:ct_image.extension:convolution_kernel.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
182. Extension.extension:ct_image.extension:convolution_kernel.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`convolution_kernel`
184. Extension.extension:ct_image.extension:convolution_kernel.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	string, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
186. Extension.extension:ct_image.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`ct_image`
188. Extension.extension:ct_image.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..01 This element is affected by the following invariants: ele-1
Type	Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
190. Extension.extension:dx_image
Slice Name	dx_image
Definition	An Extension
Short	ExtensionAdditional content defined by implementations
Control	0..1* This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
192. Extension.extension:dx_image.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	40..* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
194. Extension.extension:dx_image.extension:image_laterality
Slice Name	image_laterality
Definition	Examination of the laterality of the body part examined. Dicom Tag (0020,0062)
Short	Laterality of the body partAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
196. Extension.extension:dx_image.extension:image_laterality.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
198. Extension.extension:dx_image.extension:image_laterality.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`image_laterality`
200. Extension.extension:dx_image.extension:image_laterality.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	string, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
202. Extension.extension:dx_image.extension:patient_orientation
Slice Name	patient_orientation
Definition	Patient orientation. Dicom Tag (0020,0020)
Short	Patient orientationAdditional content defined by implementations
Control	0..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
204. Extension.extension:dx_image.extension:patient_orientation.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
206. Extension.extension:dx_image.extension:patient_orientation.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`patient_orientation`
208. Extension.extension:dx_image.extension:patient_orientation.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..1 This element is affected by the following invariants: ele-1
Type	string, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
210. Extension.extension:dx_image.extension:kvp
Slice Name	kvp
Definition	Peak kilovoltage of the voltage produced by the X-ray generator. Dicom Tag (0008,0060)
Short	Peak in kilovoltage of the X-ray generator usedAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
212. Extension.extension:dx_image.extension:kvp.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
214. Extension.extension:dx_image.extension:kvp.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`kvp`
216. Extension.extension:dx_image.extension:kvp.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	integer, date, Meta, Address, Attachment, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
218. Extension.extension:dx_image.extension:exposure
Slice Name	exposure
Definition	The exposure expressed in mAs, for example calculated from the exposure time and the X-ray tube current. DicomTag (0018,1152)
Short	The exposure expressed in mAsAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
220. Extension.extension:dx_image.extension:exposure.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
222. Extension.extension:dx_image.extension:exposure.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`exposure`
224. Extension.extension:dx_image.extension:exposure.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	integer, date, Meta, Address, Attachment, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
226. Extension.extension:dx_image.extension:exposure_time
Slice Name	exposure_time
Definition	An Extension
Short	Duration of X-Ray exposure in ms. DicomTag (0018,1150)Additional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
228. Extension.extension:dx_image.extension:exposure_time.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
230. Extension.extension:dx_image.extension:exposure_time.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`exposure_time`
232. Extension.extension:dx_image.extension:exposure_time.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	integer, date, Meta, Address, Attachment, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
234. Extension.extension:dx_image.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`dx_image`
236. Extension.extension:dx_image.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..01 This element is affected by the following invariants: ele-1
Type	Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
238. Extension.extension:pt_nm_image
Slice Name	pt_nm_image
Definition	An Extension
Short	ExtensionAdditional content defined by implementations
Control	0..1* This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
240. Extension.extension:pt_nm_image.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	30..* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
242. Extension.extension:pt_nm_image.extension:attenuation_correction_method
Slice Name	attenuation_correction_method
Definition	Attenuation correction method. Dicom Tag (0054,1101)
Short	Attenuation correction methodAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
244. Extension.extension:pt_nm_image.extension:attenuation_correction_method.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
246. Extension.extension:pt_nm_image.extension:attenuation_correction_method.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`attenuation_correction_method`
248. Extension.extension:pt_nm_image.extension:attenuation_correction_method.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	string, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
250. Extension.extension:pt_nm_image.extension:reconstruction_method
Slice Name	reconstruction_method
Definition	Reconstruction method e.g. 2D filtered back projection, 2D iterative, 3D PROMIS, 3D FAVOR, 3D iterative. Dicom Tag (0054,1103)
Short	Reconstruction methodAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
252. Extension.extension:pt_nm_image.extension:reconstruction_method.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
254. Extension.extension:pt_nm_image.extension:reconstruction_method.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`reconstruction_method`
256. Extension.extension:pt_nm_image.extension:reconstruction_method.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	string, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
258. Extension.extension:pt_nm_image.extension:scatter_correction_method
Slice Name	scatter_correction_method
Definition	Scattering correction method. For example, convolution-subtraction, dual energy window, model based, use of attenuation data. Dicom Tag (0054,1105)
Short	Scattering correction methodAdditional content defined by implementations
Control	10..1* This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
260. Extension.extension:pt_nm_image.extension:scatter_correction_method.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..0* This element is affected by the following invariants: ele-1
Type	Extension
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
262. Extension.extension:pt_nm_image.extension:scatter_correction_method.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`scatter_correction_method`
264. Extension.extension:pt_nm_image.extension:scatter_correction_method.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	10..1 This element is affected by the following invariants: ele-1
Type	string, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
266. Extension.extension:pt_nm_image.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`pt_nm_image`
268. Extension.extension:pt_nm_image.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..01 This element is affected by the following invariants: ele-1
Type	Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
270. Extension.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`https://build.fhir.org/ig/arkhn/arkhn-ig-osiris/StructureDefinition/imaging-settings`
272. Extension.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..01 This element is affected by the following invariants: ele-1
Type	Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

Guidance on how to interpret the contents of this table can be found here

0. Extension
Definition	Imaging Settings.
Short	Imaging Settings
Control	0..* This element is affected by the following invariants: ele-1
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
2. Extension.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
4. Extension.extension
Definition	An Extension
Short	Extension
Control	4..* This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
6. Extension.extension:slice_thickness
Slice Name	slice_thickness
Definition	Nominal thickness of the slice, in mm. Dicom Tag (0018,0050)
Short	Thickness of the slice in mm
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
8. Extension.extension:slice_thickness.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
10. Extension.extension:slice_thickness.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
12. Extension.extension:slice_thickness.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`slice_thickness`
14. Extension.extension:slice_thickness.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
16. Extension.extension:pixel_spacing
Slice Name	pixel_spacing
Definition	Physical distance between the centers of each two-dimensional pixel, specified by two numerical values. Dicom Tag (0028,0030)
Short	Pixel spacing
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
18. Extension.extension:pixel_spacing.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
20. Extension.extension:pixel_spacing.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
22. Extension.extension:pixel_spacing.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`pixel_spacing`
24. Extension.extension:pixel_spacing.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
26. Extension.extension:field_of_view
Slice Name	field_of_view
Definition	The field of view (FOV) is defined as the dimensions of the exact anatomical region included in a scan in mm.
Short	Field of view
Control	0..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
28. Extension.extension:field_of_view.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
30. Extension.extension:field_of_view.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
32. Extension.extension:field_of_view.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`field_of_view`
34. Extension.extension:field_of_view.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..1 This element is affected by the following invariants: ele-1
Type	integer
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
36. Extension.extension:rows
Slice Name	rows
Definition	Number of pixels in the row direction of the reconstructed matrix. Dicom Tag (0028,0010)
Short	Number of pixels in the direction of the row
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
38. Extension.extension:rows.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
40. Extension.extension:rows.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
42. Extension.extension:rows.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`rows`
44. Extension.extension:rows.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	integer
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
46. Extension.extension:columns
Slice Name	columns
Definition	Number of pixels in the column direction of the reconstructed matrix. Dicom Tag (0028,0011)
Short	Number of pixels in the direction of the column
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
48. Extension.extension:columns.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
50. Extension.extension:columns.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
52. Extension.extension:columns.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`columns`
54. Extension.extension:columns.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	integer
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
56. Extension.extension:imaging_injection
Slice Name	imaging_injection
Definition	An Extension
Short	Qualification of the medical image contrast injection
Control	0..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
58. Extension.extension:imaging_injection.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
60. Extension.extension:imaging_injection.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
62. Extension.extension:imaging_injection.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`imaging_injection`
64. Extension.extension:imaging_injection.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..1 This element is affected by the following invariants: ele-1
Type	Reference
[x] Note	See Choice of Data Types for further information about how to use [x]
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
Slicing	This element introduces a set of slices on `Extension.extension.value[x]`. The slices are unordered and Closed, and can be differentiated using the following discriminators: type @ $this
66. Extension.extension:imaging_injection.value[x]:valueReference
Slice Name	valueReference
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..1 This element is affected by the following invariants: ele-1
Type	Reference(Imaging Study Injection)
[x] Note	See Choice of Data Types for further information about how to use [x]
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
68. Extension.extension:mr_image
Slice Name	mr_image
Definition	An Extension
Short	Extension
Control	0..1 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
70. Extension.extension:mr_image.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
72. Extension.extension:mr_image.extension
Definition	An Extension
Short	Extension
Control	9..* This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
74. Extension.extension:mr_image.extension:sequence_name
Slice Name	sequence_name
Definition	Type of pulse sequence. Dicom Tag (0018,0024)
Short	Type of pulse sequence
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
76. Extension.extension:mr_image.extension:sequence_name.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
78. Extension.extension:mr_image.extension:sequence_name.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
80. Extension.extension:mr_image.extension:sequence_name.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`sequence_name`
82. Extension.extension:mr_image.extension:sequence_name.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
84. Extension.extension:mr_image.extension:magnetic_field_strength
Slice Name	magnetic_field_strength
Definition	Nominal field strength of the magnet, in Tesla. Dicom Tag (0018,0087)
Short	Nominal field strength
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
86. Extension.extension:mr_image.extension:magnetic_field_strength.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
88. Extension.extension:mr_image.extension:magnetic_field_strength.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
90. Extension.extension:mr_image.extension:magnetic_field_strength.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`magnetic_field_strength`
92. Extension.extension:mr_image.extension:magnetic_field_strength.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	decimal
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
94. Extension.extension:mr_image.extension:mr_acquisition_type
Slice Name	mr_acquisition_type
Definition	Describe the type of acquisition, particularly the number of dimension. Dicom Tag (0018,0023)
Short	Description of the type of acquisition
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
96. Extension.extension:mr_image.extension:mr_acquisition_type.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
98. Extension.extension:mr_image.extension:mr_acquisition_type.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
100. Extension.extension:mr_image.extension:mr_acquisition_type.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`mr_acquisition_type`
102. Extension.extension:mr_image.extension:mr_acquisition_type.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
104. Extension.extension:mr_image.extension:repetition_time
Slice Name	repetition_time
Definition	Repetition time in ms. Dicom Tag (0018,0080)
Short	Repetition time
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
106. Extension.extension:mr_image.extension:repetition_time.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
108. Extension.extension:mr_image.extension:repetition_time.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
110. Extension.extension:mr_image.extension:repetition_time.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`repetition_time`
112. Extension.extension:mr_image.extension:repetition_time.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	decimal
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
114. Extension.extension:mr_image.extension:echo_time
Slice Name	echo_time
Definition	Echo time in ms. Dicom Tag (0018,0081)
Short	Echo time
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
116. Extension.extension:mr_image.extension:echo_time.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
118. Extension.extension:mr_image.extension:echo_time.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
120. Extension.extension:mr_image.extension:echo_time.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`echo_time`
122. Extension.extension:mr_image.extension:echo_time.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	decimal
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
124. Extension.extension:mr_image.extension:imaging_frequency
Slice Name	imaging_frequency
Definition	Precession frequency in MHz of the target core. Dicom Tag (0018,0084)
Short	Precession frequency
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
126. Extension.extension:mr_image.extension:imaging_frequency.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
128. Extension.extension:mr_image.extension:imaging_frequency.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
130. Extension.extension:mr_image.extension:imaging_frequency.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`imaging_frequency`
132. Extension.extension:mr_image.extension:imaging_frequency.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	decimal
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
134. Extension.extension:mr_image.extension:flip_angle
Slice Name	flip_angle
Definition	Flip angle of the RF pulse in degrees impacting the T1 weighting. Dicom Tag (0018,0024) / (0018,1314)
Short	Flip angle
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
136. Extension.extension:mr_image.extension:flip_angle.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
138. Extension.extension:mr_image.extension:flip_angle.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
140. Extension.extension:mr_image.extension:flip_angle.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`flip_angle`
142. Extension.extension:mr_image.extension:flip_angle.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	decimal
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
144. Extension.extension:mr_image.extension:inversion_time
Slice Name	inversion_time
Definition	Period between the middle of the RF inversion pulse and the middle of the excitation pulse to detect the amount of longitudinal magnetization. Dicom Tag (0018,0082)
Short	Period between the middle of the RF inversion pulse and the middle of the excitation pulse
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
146. Extension.extension:mr_image.extension:inversion_time.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
148. Extension.extension:mr_image.extension:inversion_time.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
150. Extension.extension:mr_image.extension:inversion_time.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`inversion_time`
152. Extension.extension:mr_image.extension:inversion_time.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	decimal
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
154. Extension.extension:mr_image.extension:receive_coil_name
Slice Name	receive_coil_name
Definition	Receive coil name. Dicom Tag (0018,1250)
Short	Receive coil name
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
156. Extension.extension:mr_image.extension:receive_coil_name.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
158. Extension.extension:mr_image.extension:receive_coil_name.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
160. Extension.extension:mr_image.extension:receive_coil_name.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`receive_coil_name`
162. Extension.extension:mr_image.extension:receive_coil_name.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
164. Extension.extension:mr_image.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`mr_image`
166. Extension.extension:mr_image.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
168. Extension.extension:ct_image
Slice Name	ct_image
Definition	An Extension
Short	Extension
Control	0..1 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
170. Extension.extension:ct_image.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
172. Extension.extension:ct_image.extension
Definition	An Extension
Short	Extension
Control	5..* This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
174. Extension.extension:ct_image.extension:kvp
Slice Name	kvp
Definition	Peak kilovoltage of the voltage produced by the X-ray generator. Dicom Tag (0018,0060)
Short	Peak kilovoltage produced by the X-ray generator
Control	0..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
176. Extension.extension:ct_image.extension:kvp.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
178. Extension.extension:ct_image.extension:kvp.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
180. Extension.extension:ct_image.extension:kvp.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`kvp`
182. Extension.extension:ct_image.extension:kvp.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..1 This element is affected by the following invariants: ele-1
Type	integer
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
184. Extension.extension:ct_image.extension:xray_tube_current
Slice Name	xray_tube_current
Definition	X-ray tube current in mA. Dicom Tag (0018,1151)
Short	X-ray tube current in mA
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
186. Extension.extension:ct_image.extension:xray_tube_current.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
188. Extension.extension:ct_image.extension:xray_tube_current.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
190. Extension.extension:ct_image.extension:xray_tube_current.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`xray_tube_current`
192. Extension.extension:ct_image.extension:xray_tube_current.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	integer
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
194. Extension.extension:ct_image.extension:exposure_time
Slice Name	exposure_time
Definition	X-ray exposure time in ms. Dicom Tag (0018,1150)
Short	X-ray exposure time in ms
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
196. Extension.extension:ct_image.extension:exposure_time.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
198. Extension.extension:ct_image.extension:exposure_time.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
200. Extension.extension:ct_image.extension:exposure_time.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`exposure_time`
202. Extension.extension:ct_image.extension:exposure_time.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	integer
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
204. Extension.extension:ct_image.extension:spiral_pitch_factor
Slice Name	spiral_pitch_factor
Definition	'Spiral Pitch' - Ratio between the table feed per rotation and the total width of the collimation. Dicom Tag (0018,9311)
Short	'Spiral Pitch' - Ratio between the table feed per rotation and the total width of the collimation
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
206. Extension.extension:ct_image.extension:spiral_pitch_factor.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
208. Extension.extension:ct_image.extension:spiral_pitch_factor.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
210. Extension.extension:ct_image.extension:spiral_pitch_factor.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`spiral_pitch_factor`
212. Extension.extension:ct_image.extension:spiral_pitch_factor.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	decimal
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
214. Extension.extension:ct_image.extension:filter_type
Slice Name	filter_type
Definition	Filter type. DicomTag (0018,1160)
Short	Filter type
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
216. Extension.extension:ct_image.extension:filter_type.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
218. Extension.extension:ct_image.extension:filter_type.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
220. Extension.extension:ct_image.extension:filter_type.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`filter_type`
222. Extension.extension:ct_image.extension:filter_type.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
224. Extension.extension:ct_image.extension:convolution_kernel
Slice Name	convolution_kernel
Definition	A label describing the convolution kernel or algorithm used to recontruct the data. Dicom Tag (0018,1210)
Short	Convolution kernel or algorithm
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
226. Extension.extension:ct_image.extension:convolution_kernel.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
228. Extension.extension:ct_image.extension:convolution_kernel.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
230. Extension.extension:ct_image.extension:convolution_kernel.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`convolution_kernel`
232. Extension.extension:ct_image.extension:convolution_kernel.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
234. Extension.extension:ct_image.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`ct_image`
236. Extension.extension:ct_image.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
238. Extension.extension:dx_image
Slice Name	dx_image
Definition	An Extension
Short	Extension
Control	0..1 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
240. Extension.extension:dx_image.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
242. Extension.extension:dx_image.extension
Definition	An Extension
Short	Extension
Control	4..* This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
244. Extension.extension:dx_image.extension:image_laterality
Slice Name	image_laterality
Definition	Examination of the laterality of the body part examined. Dicom Tag (0020,0062)
Short	Laterality of the body part
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
246. Extension.extension:dx_image.extension:image_laterality.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
248. Extension.extension:dx_image.extension:image_laterality.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
250. Extension.extension:dx_image.extension:image_laterality.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`image_laterality`
252. Extension.extension:dx_image.extension:image_laterality.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
254. Extension.extension:dx_image.extension:patient_orientation
Slice Name	patient_orientation
Definition	Patient orientation. Dicom Tag (0020,0020)
Short	Patient orientation
Control	0..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
256. Extension.extension:dx_image.extension:patient_orientation.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
258. Extension.extension:dx_image.extension:patient_orientation.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
260. Extension.extension:dx_image.extension:patient_orientation.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`patient_orientation`
262. Extension.extension:dx_image.extension:patient_orientation.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..1 This element is affected by the following invariants: ele-1
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
264. Extension.extension:dx_image.extension:kvp
Slice Name	kvp
Definition	Peak kilovoltage of the voltage produced by the X-ray generator. Dicom Tag (0008,0060)
Short	Peak in kilovoltage of the X-ray generator used
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
266. Extension.extension:dx_image.extension:kvp.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
268. Extension.extension:dx_image.extension:kvp.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
270. Extension.extension:dx_image.extension:kvp.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`kvp`
272. Extension.extension:dx_image.extension:kvp.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	integer
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
274. Extension.extension:dx_image.extension:exposure
Slice Name	exposure
Definition	The exposure expressed in mAs, for example calculated from the exposure time and the X-ray tube current. DicomTag (0018,1152)
Short	The exposure expressed in mAs
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
276. Extension.extension:dx_image.extension:exposure.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
278. Extension.extension:dx_image.extension:exposure.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
280. Extension.extension:dx_image.extension:exposure.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`exposure`
282. Extension.extension:dx_image.extension:exposure.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	integer
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
284. Extension.extension:dx_image.extension:exposure_time
Slice Name	exposure_time
Definition	An Extension
Short	Duration of X-Ray exposure in ms. DicomTag (0018,1150)
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
286. Extension.extension:dx_image.extension:exposure_time.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
288. Extension.extension:dx_image.extension:exposure_time.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
290. Extension.extension:dx_image.extension:exposure_time.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`exposure_time`
292. Extension.extension:dx_image.extension:exposure_time.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	integer
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
294. Extension.extension:dx_image.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`dx_image`
296. Extension.extension:dx_image.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
298. Extension.extension:pt_nm_image
Slice Name	pt_nm_image
Definition	An Extension
Short	Extension
Control	0..1 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
300. Extension.extension:pt_nm_image.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
302. Extension.extension:pt_nm_image.extension
Definition	An Extension
Short	Extension
Control	3..* This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
304. Extension.extension:pt_nm_image.extension:attenuation_correction_method
Slice Name	attenuation_correction_method
Definition	Attenuation correction method. Dicom Tag (0054,1101)
Short	Attenuation correction method
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
306. Extension.extension:pt_nm_image.extension:attenuation_correction_method.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
308. Extension.extension:pt_nm_image.extension:attenuation_correction_method.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
310. Extension.extension:pt_nm_image.extension:attenuation_correction_method.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`attenuation_correction_method`
312. Extension.extension:pt_nm_image.extension:attenuation_correction_method.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
314. Extension.extension:pt_nm_image.extension:reconstruction_method
Slice Name	reconstruction_method
Definition	Reconstruction method e.g. 2D filtered back projection, 2D iterative, 3D PROMIS, 3D FAVOR, 3D iterative. Dicom Tag (0054,1103)
Short	Reconstruction method
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
316. Extension.extension:pt_nm_image.extension:reconstruction_method.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
318. Extension.extension:pt_nm_image.extension:reconstruction_method.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
320. Extension.extension:pt_nm_image.extension:reconstruction_method.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`reconstruction_method`
322. Extension.extension:pt_nm_image.extension:reconstruction_method.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
324. Extension.extension:pt_nm_image.extension:scatter_correction_method
Slice Name	scatter_correction_method
Definition	Scattering correction method. For example, convolution-subtraction, dual energy window, model based, use of attenuation data. Dicom Tag (0054,1105)
Short	Scattering correction method
Control	1..1 This element is affected by the following invariants: ele-1
Type	Extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
326. Extension.extension:pt_nm_image.extension:scatter_correction_method.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
XML Format	In the XML format, this property is represented as an attribute.
328. Extension.extension:pt_nm_image.extension:scatter_correction_method.extension
Definition	An Extension
Short	Extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension.extension`. The slices are unordered and Open, and can be differentiated using the following discriminators: value @ url
330. Extension.extension:pt_nm_image.extension:scatter_correction_method.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`scatter_correction_method`
332. Extension.extension:pt_nm_image.extension:scatter_correction_method.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	1..1 This element is affected by the following invariants: ele-1
Type	string
[x] Note	See Choice of Data Types for further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Must Support	true
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
334. Extension.extension:pt_nm_image.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`pt_nm_image`
336. Extension.extension:pt_nm_image.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
338. Extension.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`https://build.fhir.org/ig/arkhn/arkhn-ig-osiris/StructureDefinition/imaging-settings`
340. Extension.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..0 This element is affected by the following invariants: ele-1
Type	Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)