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10.6 Resource ImagingSelection - Content

Imaging Integration icon Work GroupMaturity Level: 1 Trial UseSecurity Category: Patient Compartments: Patient

A selection of DICOM SOP instances and/or frames within a single Study and Series. This might include additional specifics such as an image region, an Observation UID or a Segmentation Number, allowing linkage to an Observation Resource or transferring this information along with the ImagingStudy Resource.

10.6.1 Scope and Usage

This resource is an event resource from a FHIR workflow perspective - see Workflow.

A selection of data from an ImagingStudy. The selection may be:

  • All DICOM SOP Instances in a single DICOM Series
  • A set of DICOM SOP Instances within a single DICOM Series
  • A set of frames within one or more DICOM multiframe image SOP Instances
  • A set of segments within one or more DICOM segmentation SOP Instances
  • A set of content items within one or more DICOM Structured Report SOP Instances
  • ...

May also represent regions within the ImagingStudy frame of reference, including:

  • A 2D region within one or more DICOM image SOP Instances
  • A 3D region within a DICOM Frame of Reference

Uses for ImagingSelection resources include:

  • Identifying a specific set of images or frames as the focus of an Observation
  • Identifying a spatial region or volume as the focus of an Observation
  • Identifying the set of image coordinates as the focus of a measurement represented by an Observation
  • Identifying a node in a DICOM Structured Report SOP Instance from which an Observation is derived
  • Identifying images, frames or presentation states selected as part of shared application context in a context-sharing environment
  • Identifying a specific set of images, frames or presentation states to be presented

All DICOM SOP Instances referenced in a single ImagingSelection resource shall be part of the same DICOM Series (and therefore also the same DICOM Study). In order to reference SOP Instances in multiple Studies or Series it is necessary to create multiple ImagingSelection resources.

10.6.2 Boundaries and Relationships

The ImagingStudy resource is used to store details of an entire DICOM Study and associated information.

The ImagingSelection resource is used to reference to a specific set of specific set of images, frames, waveforms or image regions.

An Observation may be related to a set of images in several ways.

While an ImagingSelection is restricted to a single DICOM Series, a single Observation references multiple ImagingSelection resources if it relates to multiple Studies and / or Series – for example, to reference multiple images over different cardiac phases or a PET and a CT image.

A DiagnosticReport might directly reference an ImagingSelection that includes one or more Observations derived from ImagingSelection resources.

In contrast with a DocumentReference, an ImagingSelection includes the ability to specify a region within an image, an observation node within a DICOM Structured Reporting (SR) and the ability to specify one or more Endpoint resources for retrieval of the referenced images, frames, waveforms or documents. Additionally, DocumentReference has limited ability to reference multiple images or frames and can only specify the Study, Series and SOP Instance UIDs implicitly via the URL.

DocumentReference might be appropriate for including a rendered DICOM image in cases where the full image context is not important.

10.6.3 References to this Resource

10.6.4 Resource Content

Structure

NameFlagsCard.TypeDescription & Constraintsdoco
.. ImagingSelection TU DomainResource A selection of DICOM SOP instances and/or frames

Elements defined in Ancestors: id, meta, implicitRules, language, text, contained, extension, modifierExtension
... identifier Σ 0..* Identifier Business Identifier for Imaging Selection

... status ?!Σ 1..1 code available | entered-in-error | inactive | unknown
Binding: Imaging Selection Status (Required)
... category Σ 0..* CodeableConcept Classifies the imaging selection
Binding: KeyObjectSelectionDocumentTitle icon (Example)

... subject Σ 0..1 Reference(Patient | Group | Device | Procedure | Practitioner | Medication | Substance | Specimen) Subject of the selected instances
... issued Σ 0..1 instant Date / Time when this imaging selection was created
... performer Σ 0..* BackboneElement Selectors of the instances (human or machine)

.... function Σ 0..1 CodeableConcept Type of performer
Binding: ImagingStudy series performer function (Extensible)
.... actor Σ 0..1 Reference(Practitioner | PractitionerRole | Device | Organization | CareTeam | Patient | RelatedPerson | HealthcareService) Author (human or machine)
... basedOn Σ 0..* Reference(CarePlan | ServiceRequest | Appointment | AppointmentResponse | Task) Associated requests

... derivedFrom Σ 0..* Reference(ImagingStudy | DocumentReference) The imaging study from which the imaging selection is derived

... studyUid Σ 0..1 id DICOM Study Instance UID
... seriesUid Σ 0..1 id DICOM Series Instance UID
... seriesNumber Σ 0..1 unsignedInt DICOM Series Number
... frameOfReferenceUid Σ 0..1 id The Frame of Reference UID for the selected images
... bodySite Σ 0..* CodeableReference(BodyStructure) Body part examined
Binding: SNOMED CT Body Structures (Example)

... focus Σ 0..* Reference(ImagingSelection) Related resources that are the focus for the imaging selection

... endpoint Σ 0..* Reference(Endpoint) The network services providing retrieval for the images referenced in the imaging selection

... instance Σ 0..* BackboneElement The selected instances

.... uid Σ 1..1 id DICOM SOP Instance UID
.... number Σ 0..1 unsignedInt DICOM Instance Number
.... sopClass 0..1 oid DICOM SOP Class UID
.... subset 0..* string The selected subset of the SOP Instance

.... imageRegion2D 0..* BackboneElement A specific 2D region in a DICOM image / frame

..... regionType 1..1 code point | polyline | multipoint | circle | ellipse
Binding: Imaging Selection 2D Graphic Type (Required)
..... coordinate 1..* decimal Specifies the coordinates that define the image region
This repeating element order: The values are an ordered set of (x, y) coordinates.
... imageRegion3D 0..* BackboneElement A specific 3D region in a DICOM frame of reference

.... regionType 1..1 code point | multipoint | polyline | polygon | ellipse | ellipsoid
Binding: Imaging Selection3 D Graphic Type (Required)
.... coordinate 1..* decimal Specifies the coordinates that define the image region
This repeating element order: The values are an ordered set of (x, y, z) coordinates.

doco Documentation for this format icon

See the Extensions for this resource

UML Diagram (Legend)

ImagingSelection (DomainResource)Unique identifiers assigned to this imaging selectionidentifier : Identifier [0..*]The current state of the ImagingSelection resource. This is not the status of any ImagingStudy, ServiceRequest, or Task resources associated with the ImagingSelection (this element modifies the meaning of other elements)status : code [1..1] « null (Strength=Required)ImagingSelectionStatus! »Classifies the imaging selectioncategory : CodeableConcept [0..*] « null (Strength=Example)KeyObjectSelectionDocumentTit...?? »Reason for referencing the selected contentcode : CodeableConcept [1..1] « null (Strength=Example)KeyObjectSelectionDocumentTit...?? »The patient, or group of patients, location, device, organization, procedure or practitioner this imaging selection is about and into whose or what record the imaging selection is placedsubject : Reference [0..1] « Patient|Group|Device|Procedure| Practitioner|Medication|Substance|Specimen »The date and time this imaging selection was createdissued : instant [0..1]A list of the diagnostic requests that resulted in this imaging selection being performedbasedOn : Reference [0..*] « CarePlan|ServiceRequest|Appointment| AppointmentResponse|Task »The imaging study from which the imaging selection is madederivedFrom : Reference [0..*] « ImagingStudy|DocumentReference »The Study Instance UID for the DICOM Study from which the images were selectedstudyUid : id [0..1]The Series Instance UID for the DICOM Series from which the images were selectedseriesUid : id [0..1]The Series Number for the DICOM Series from which the images were selectedseriesNumber : unsignedInt [0..1]The Frame of Reference UID identifying the coordinate system that conveys spatial and/or temporal information for the selected images or framesframeOfReferenceUid : id [0..1]The anatomic structures examined. See [DICOM Part 16 Annex L](http://dicom.nema.org/medical/dicom/current/output/chtml/part16/chapter_L.html) for DICOM to SNOMED-CT mappingsbodySite : CodeableReference [0..*] « BodyStructure; Codes describing anatomical locations. May include laterality. (Strength=Example) SNOMEDCTBodyStructures?? »The actual focus of an imaging selection when it is another imaging selection resource and not the patient of recordfocus : Reference [0..*] « ImagingSelection »The network services providing retrieval access to the selected images, frames, etc. See implementation notes for information about using DICOM endpointsendpoint : Reference [0..*] « Endpoint »PerformerDistinguishes the type of involvement of the performerfunction : CodeableConcept [0..1] « null (Strength=Extensible)ImagingStudySeriesPerformerFu...+ »Author - human or machineactor : Reference [0..1] « Practitioner|PractitionerRole|Device| Organization|CareTeam|Patient|RelatedPerson|HealthcareService »InstanceThe SOP Instance UID for the selected DICOM instanceuid : id [1..1]The Instance Number for the selected DICOM instancenumber : unsignedInt [0..1]The SOP Class UID for the selected DICOM instancesopClass : oid [0..1]Selected subset of the SOP Instance. The type of the subset item is determined by the `instance.sopClass` value. May be one of: - A list of frame numbers selected from a multiframe SOP Instance. - A list of Referenced Content Item Identifier values selected from a DICOM SR or other structured document SOP Instance (See [DICOM C.17.3.2.5](https://dicom.nema.org/medical/dicom/current/output/chtml/part03/sect_C.17.3.2.5.html)). - A list of segment numbers selected from a segmentation SOP Instance (See [DICOM Table C.8.20-4](https://dicom.nema.org/medical/dicom/current/output/chtml/part03/sect_C.8.20.4.html#table_C.8.20-4)). - A list of Region of Interest (ROI) numbers selected from a radiotherapy structure set SOP Instance (See [DICOM C.8.8.5](https://dicom.nema.org/medical/dicom/current/output/chtml/part03/sect_C.8.8.5.html))subset : string [0..*]ImageRegion2DSpecifies the type of image regionregionType : code [1..1] « null (Strength=Required)ImagingSelection2DGraphicType! »The coordinates describing the image region. Encoded as a set of (column, row) pairs that denote positions in the selected image / frames specified with sub-pixel resolution. The origin at the TLHC of the TLHC pixel is 0.0\0.0, the BRHC of the TLHC pixel is 1.0\1.0, and the BRHC of the BRHC pixel is the number of columns\rows in the image / frames. The values must be within the range 0\0 to the number of columns\rows in the image / framescoordinate : decimal [1..*]ImageRegion3DSpecifies the type of image regionregionType : code [1..1] « null (Strength=Required)ImagingSelection3DGraphicType! »The coordinates describing the image region. Encoded as an ordered set of (x,y,z) triplets (in mm and may be negative) that define a region of interest in the patient-relative Reference Coordinate System defined by ImagingSelection.frameOfReferenceUid elementcoordinate : decimal [1..*]Selectors of the instances – human or machineperformer[0..*]Each imaging selection instance or frame list might includes an image region, specified by a region type and a set of 2D coordinates. If the parent imagingSelection.instance contains a subset element of type frame, the image region applies to all frames in the subset listimageRegion2D[0..*]Each imaging selection includes one or more selected DICOM SOP instancesinstance[0..*]Each imaging selection might includes a 3D image region, specified by a region type and a set of 3D coordinatesimageRegion3D[0..*]

XML Template

<ImagingSelection xmlns="http://hl7.org/fhir"> doco
 <!-- from Resource: id, meta, implicitRules, and language -->
 <!-- from DomainResource: text, contained, extension, and modifierExtension -->
 <identifier><!-- 0..* Identifier Business Identifier for Imaging Selection --></identifier>
 <status value="[code]"/><!-- 1..1 available | entered-in-error | inactive | unknown -->
 <category><!-- 0..* CodeableConcept Classifies the imaging selection icon --></category>
 <code><!-- 1..1 CodeableConcept Imaging Selection purpose text or code icon --></code>
 <subject><!-- 0..1 Reference(Device|Group|Medication|Patient|Practitioner|
   Procedure|Specimen|Substance) Subject of the selected instances --></subject>
 <issued value="[instant]"/><!-- 0..1 Date / Time when this imaging selection was created -->
 <performer>  <!-- 0..* Selectors of the instances (human or machine) -->
  <function><!-- 0..1 CodeableConcept Type of performer --></function>
  <actor><!-- 0..1 Reference(CareTeam|Device|HealthcareService|Organization|
    Patient|Practitioner|PractitionerRole|RelatedPerson) Author (human or machine) --></actor>
 </performer>
 <basedOn><!-- 0..* Reference(Appointment|AppointmentResponse|CarePlan|
   ServiceRequest|Task) Associated requests --></basedOn>
 <derivedFrom><!-- 0..* Reference(DocumentReference|ImagingStudy) The imaging study from which the imaging selection is derived --></derivedFrom>
 <studyUid value="[id]"/><!-- 0..1 DICOM Study Instance UID -->
 <seriesUid value="[id]"/><!-- 0..1 DICOM Series Instance UID -->
 <seriesNumber value="[unsignedInt]"/><!-- 0..1 DICOM Series Number -->
 <frameOfReferenceUid value="[id]"/><!-- 0..1 The Frame of Reference UID for the selected images -->
 <bodySite><!-- 0..* CodeableReference(BodyStructure) Body part examined --></bodySite>
 <focus><!-- 0..* Reference(ImagingSelection) Related resources that are the focus for the imaging selection --></focus>
 <endpoint><!-- 0..* Reference(Endpoint) The network services providing retrieval for the images referenced in the imaging selection --></endpoint>
 <instance>  <!-- 0..* The selected instances -->
  <uid value="[id]"/><!-- 1..1 DICOM SOP Instance UID -->
  <number value="[unsignedInt]"/><!-- 0..1 DICOM Instance Number -->
  <sopClass value="[oid]"/><!-- 0..1 DICOM SOP Class UID -->
  <subset value="[string]"/><!-- 0..* The selected subset of the SOP Instance -->
  <imageRegion2D>  <!-- 0..* A specific 2D region in a DICOM image / frame -->
   <regionType value="[code]"/><!-- 1..1 point | polyline | multipoint | circle | ellipse -->
   <coordinate value="[decimal]"/><!-- 1..* Specifies the coordinates that define the image region -->
  </imageRegion2D>
 </instance>
 <imageRegion3D>  <!-- 0..* A specific 3D region in a DICOM frame of reference -->
  <regionType value="[code]"/><!-- 1..1 point | multipoint | polyline | polygon | ellipse | ellipsoid -->
  <coordinate value="[decimal]"/><!-- 1..* Specifies the coordinates that define the image region -->
 </imageRegion3D>
</ImagingSelection>

JSON Template

{doco
  "resourceType" : "ImagingSelection",
  // from Resource: id, meta, implicitRules, and language
  // from DomainResource: text, contained, extension, and modifierExtension
  "identifier" : [{ Identifier }], // Business Identifier for Imaging Selection
  "status" : "<code>", // R!  available | entered-in-error | inactive | unknown
  "category" : [{ CodeableConcept }], // Classifies the imaging selection icon
  "code" : { CodeableConcept }, // R!  Imaging Selection purpose text or code icon
  "subject" : { Reference(Device|Group|Medication|Patient|Practitioner|
   Procedure|Specimen|Substance) }, // Subject of the selected instances
  "issued" : "<instant>", // Date / Time when this imaging selection was created
  "performer" : [{ // Selectors of the instances (human or machine)
    "function" : { CodeableConcept }, // Type of performer
    "actor" : { Reference(CareTeam|Device|HealthcareService|Organization|
    Patient|Practitioner|PractitionerRole|RelatedPerson) } // Author (human or machine)
  }],
  "basedOn" : [{ Reference(Appointment|AppointmentResponse|CarePlan|
   ServiceRequest|Task) }], // Associated requests
  "derivedFrom" : [{ Reference(DocumentReference|ImagingStudy) }], // The imaging study from which the imaging selection is derived
  "studyUid" : "<id>", // DICOM Study Instance UID
  "seriesUid" : "<id>", // DICOM Series Instance UID
  "seriesNumber" : "<unsignedInt>", // DICOM Series Number
  "frameOfReferenceUid" : "<id>", // The Frame of Reference UID for the selected images
  "bodySite" : [{ CodeableReference(BodyStructure) }], // Body part examined
  "focus" : [{ Reference(ImagingSelection) }], // Related resources that are the focus for the imaging selection
  "endpoint" : [{ Reference(Endpoint) }], // The network services providing retrieval for the images referenced in the imaging selection
  "instance" : [{ // The selected instances
    "uid" : "<id>", // R!  DICOM SOP Instance UID
    "number" : "<unsignedInt>", // DICOM Instance Number
    "sopClass" : "<oid>", // DICOM SOP Class UID
    "subset" : ["<string>"], // The selected subset of the SOP Instance
    "imageRegion2D" : [{ // A specific 2D region in a DICOM image / frame
      "regionType" : "<code>", // R!  point | polyline | multipoint | circle | ellipse
      "coordinate" : [<decimal>] // R!  Specifies the coordinates that define the image region
    }]
  }],
  "imageRegion3D" : [{ // A specific 3D region in a DICOM frame of reference
    "regionType" : "<code>", // R!  point | multipoint | polyline | polygon | ellipse | ellipsoid
    "coordinate" : [<decimal>] // R!  Specifies the coordinates that define the image region
  }]
}

Turtle Template

@prefix fhir: <http://hl7.org/fhir/> .doco


[ a fhir:ImagingSelection;
  fhir:nodeRole fhir:treeRoot; # if this is the parser root

  # from Resource: .id, .meta, .implicitRules, and .language
  # from DomainResource: .text, .contained, .extension, and .modifierExtension
  fhir:identifier  ( [ Identifier ] ... ) ; # 0..* Business Identifier for Imaging Selection
  fhir:status [ code ] ; # 1..1 available | entered-in-error | inactive | unknown
  fhir:category  ( [ CodeableConcept ] ... ) ; # 0..* Classifies the imaging selection
  fhir:code [ CodeableConcept ] ; # 1..1 Imaging Selection purpose text or code
  fhir:subject [ Reference(Device|Group|Medication|Patient|Practitioner|Procedure|Specimen|Substance) ] ; # 0..1 Subject of the selected instances
  fhir:issued [ instant ] ; # 0..1 Date / Time when this imaging selection was created
  fhir:performer ( [ # 0..* Selectors of the instances (human or machine)
    fhir:function [ CodeableConcept ] ; # 0..1 Type of performer
    fhir:actor [ Reference(CareTeam|Device|HealthcareService|Organization|Patient|Practitioner|
  PractitionerRole|RelatedPerson) ] ; # 0..1 Author (human or machine)
  ] ... ) ;
  fhir:basedOn  ( [ Reference(Appointment|AppointmentResponse|CarePlan|ServiceRequest|Task) ] ... ) ; # 0..* Associated requests
  fhir:derivedFrom  ( [ Reference(DocumentReference|ImagingStudy) ] ... ) ; # 0..* The imaging study from which the imaging selection is derived
  fhir:studyUid [ id ] ; # 0..1 DICOM Study Instance UID
  fhir:seriesUid [ id ] ; # 0..1 DICOM Series Instance UID
  fhir:seriesNumber [ unsignedInt ] ; # 0..1 DICOM Series Number
  fhir:frameOfReferenceUid [ id ] ; # 0..1 The Frame of Reference UID for the selected images
  fhir:bodySite  ( [ CodeableReference(BodyStructure) ] ... ) ; # 0..* Body part examined
  fhir:focus  ( [ Reference(ImagingSelection) ] ... ) ; # 0..* Related resources that are the focus for the imaging selection
  fhir:endpoint  ( [ Reference(Endpoint) ] ... ) ; # 0..* The network services providing retrieval for the images referenced in the imaging selection
  fhir:instance ( [ # 0..* The selected instances
    fhir:uid [ id ] ; # 1..1 DICOM SOP Instance UID
    fhir:number [ unsignedInt ] ; # 0..1 DICOM Instance Number
    fhir:sopClass [ oid ] ; # 0..1 DICOM SOP Class UID
    fhir:subset  ( [ string ] ... ) ; # 0..* The selected subset of the SOP Instance
    fhir:imageRegion2D ( [ # 0..* A specific 2D region in a DICOM image / frame
      fhir:regionType [ code ] ; # 1..1 point | polyline | multipoint | circle | ellipse
      fhir:coordinate  ( [ decimal ] ... ) ; # 1..* Specifies the coordinates that define the image region
    ] ... ) ;
  ] ... ) ;
  fhir:imageRegion3D ( [ # 0..* A specific 3D region in a DICOM frame of reference
    fhir:regionType [ code ] ; # 1..1 point | multipoint | polyline | polygon | ellipse | ellipsoid
    fhir:coordinate  ( [ decimal ] ... ) ; # 1..* Specifies the coordinates that define the image region
  ] ... ) ;
]

Changes from both R4 and R4B

This resource did not exist in Release R4

See the Full Difference for further information

This analysis is available for R4 as XML or JSON and for R4B as XML or JSON.

Structure

NameFlagsCard.TypeDescription & Constraintsdoco
.. ImagingSelection TU DomainResource A selection of DICOM SOP instances and/or frames

Elements defined in Ancestors: id, meta, implicitRules, language, text, contained, extension, modifierExtension
... identifier Σ 0..* Identifier Business Identifier for Imaging Selection

... status ?!Σ 1..1 code available | entered-in-error | inactive | unknown
Binding: Imaging Selection Status (Required)
... category Σ 0..* CodeableConcept Classifies the imaging selection
Binding: KeyObjectSelectionDocumentTitle icon (Example)

... subject Σ 0..1 Reference(Patient | Group | Device | Procedure | Practitioner | Medication | Substance | Specimen) Subject of the selected instances
... issued Σ 0..1 instant Date / Time when this imaging selection was created
... performer Σ 0..* BackboneElement Selectors of the instances (human or machine)

.... function Σ 0..1 CodeableConcept Type of performer
Binding: ImagingStudy series performer function (Extensible)
.... actor Σ 0..1 Reference(Practitioner | PractitionerRole | Device | Organization | CareTeam | Patient | RelatedPerson | HealthcareService) Author (human or machine)
... basedOn Σ 0..* Reference(CarePlan | ServiceRequest | Appointment | AppointmentResponse | Task) Associated requests

... derivedFrom Σ 0..* Reference(ImagingStudy | DocumentReference) The imaging study from which the imaging selection is derived

... studyUid Σ 0..1 id DICOM Study Instance UID
... seriesUid Σ 0..1 id DICOM Series Instance UID
... seriesNumber Σ 0..1 unsignedInt DICOM Series Number
... frameOfReferenceUid Σ 0..1 id The Frame of Reference UID for the selected images
... bodySite Σ 0..* CodeableReference(BodyStructure) Body part examined
Binding: SNOMED CT Body Structures (Example)

... focus Σ 0..* Reference(ImagingSelection) Related resources that are the focus for the imaging selection

... endpoint Σ 0..* Reference(Endpoint) The network services providing retrieval for the images referenced in the imaging selection

... instance Σ 0..* BackboneElement The selected instances

.... uid Σ 1..1 id DICOM SOP Instance UID
.... number Σ 0..1 unsignedInt DICOM Instance Number
.... sopClass 0..1 oid DICOM SOP Class UID
.... subset 0..* string The selected subset of the SOP Instance

.... imageRegion2D 0..* BackboneElement A specific 2D region in a DICOM image / frame

..... regionType 1..1 code point | polyline | multipoint | circle | ellipse
Binding: Imaging Selection 2D Graphic Type (Required)
..... coordinate 1..* decimal Specifies the coordinates that define the image region
This repeating element order: The values are an ordered set of (x, y) coordinates.
... imageRegion3D 0..* BackboneElement A specific 3D region in a DICOM frame of reference

.... regionType 1..1 code point | multipoint | polyline | polygon | ellipse | ellipsoid
Binding: Imaging Selection3 D Graphic Type (Required)
.... coordinate 1..* decimal Specifies the coordinates that define the image region
This repeating element order: The values are an ordered set of (x, y, z) coordinates.

doco Documentation for this format icon

See the Extensions for this resource

UML Diagram (Legend)

ImagingSelection (DomainResource)Unique identifiers assigned to this imaging selectionidentifier : Identifier [0..*]The current state of the ImagingSelection resource. This is not the status of any ImagingStudy, ServiceRequest, or Task resources associated with the ImagingSelection (this element modifies the meaning of other elements)status : code [1..1] « null (Strength=Required)ImagingSelectionStatus! »Classifies the imaging selectioncategory : CodeableConcept [0..*] « null (Strength=Example)KeyObjectSelectionDocumentTit...?? »Reason for referencing the selected contentcode : CodeableConcept [1..1] « null (Strength=Example)KeyObjectSelectionDocumentTit...?? »The patient, or group of patients, location, device, organization, procedure or practitioner this imaging selection is about and into whose or what record the imaging selection is placedsubject : Reference [0..1] « Patient|Group|Device|Procedure| Practitioner|Medication|Substance|Specimen »The date and time this imaging selection was createdissued : instant [0..1]A list of the diagnostic requests that resulted in this imaging selection being performedbasedOn : Reference [0..*] « CarePlan|ServiceRequest|Appointment| AppointmentResponse|Task »The imaging study from which the imaging selection is madederivedFrom : Reference [0..*] « ImagingStudy|DocumentReference »The Study Instance UID for the DICOM Study from which the images were selectedstudyUid : id [0..1]The Series Instance UID for the DICOM Series from which the images were selectedseriesUid : id [0..1]The Series Number for the DICOM Series from which the images were selectedseriesNumber : unsignedInt [0..1]The Frame of Reference UID identifying the coordinate system that conveys spatial and/or temporal information for the selected images or framesframeOfReferenceUid : id [0..1]The anatomic structures examined. See [DICOM Part 16 Annex L](http://dicom.nema.org/medical/dicom/current/output/chtml/part16/chapter_L.html) for DICOM to SNOMED-CT mappingsbodySite : CodeableReference [0..*] « BodyStructure; Codes describing anatomical locations. May include laterality. (Strength=Example) SNOMEDCTBodyStructures?? »The actual focus of an imaging selection when it is another imaging selection resource and not the patient of recordfocus : Reference [0..*] « ImagingSelection »The network services providing retrieval access to the selected images, frames, etc. See implementation notes for information about using DICOM endpointsendpoint : Reference [0..*] « Endpoint »PerformerDistinguishes the type of involvement of the performerfunction : CodeableConcept [0..1] « null (Strength=Extensible)ImagingStudySeriesPerformerFu...+ »Author - human or machineactor : Reference [0..1] « Practitioner|PractitionerRole|Device| Organization|CareTeam|Patient|RelatedPerson|HealthcareService »InstanceThe SOP Instance UID for the selected DICOM instanceuid : id [1..1]The Instance Number for the selected DICOM instancenumber : unsignedInt [0..1]The SOP Class UID for the selected DICOM instancesopClass : oid [0..1]Selected subset of the SOP Instance. The type of the subset item is determined by the `instance.sopClass` value. May be one of: - A list of frame numbers selected from a multiframe SOP Instance. - A list of Referenced Content Item Identifier values selected from a DICOM SR or other structured document SOP Instance (See [DICOM C.17.3.2.5](https://dicom.nema.org/medical/dicom/current/output/chtml/part03/sect_C.17.3.2.5.html)). - A list of segment numbers selected from a segmentation SOP Instance (See [DICOM Table C.8.20-4](https://dicom.nema.org/medical/dicom/current/output/chtml/part03/sect_C.8.20.4.html#table_C.8.20-4)). - A list of Region of Interest (ROI) numbers selected from a radiotherapy structure set SOP Instance (See [DICOM C.8.8.5](https://dicom.nema.org/medical/dicom/current/output/chtml/part03/sect_C.8.8.5.html))subset : string [0..*]ImageRegion2DSpecifies the type of image regionregionType : code [1..1] « null (Strength=Required)ImagingSelection2DGraphicType! »The coordinates describing the image region. Encoded as a set of (column, row) pairs that denote positions in the selected image / frames specified with sub-pixel resolution. The origin at the TLHC of the TLHC pixel is 0.0\0.0, the BRHC of the TLHC pixel is 1.0\1.0, and the BRHC of the BRHC pixel is the number of columns\rows in the image / frames. The values must be within the range 0\0 to the number of columns\rows in the image / framescoordinate : decimal [1..*]ImageRegion3DSpecifies the type of image regionregionType : code [1..1] « null (Strength=Required)ImagingSelection3DGraphicType! »The coordinates describing the image region. Encoded as an ordered set of (x,y,z) triplets (in mm and may be negative) that define a region of interest in the patient-relative Reference Coordinate System defined by ImagingSelection.frameOfReferenceUid elementcoordinate : decimal [1..*]Selectors of the instances – human or machineperformer[0..*]Each imaging selection instance or frame list might includes an image region, specified by a region type and a set of 2D coordinates. If the parent imagingSelection.instance contains a subset element of type frame, the image region applies to all frames in the subset listimageRegion2D[0..*]Each imaging selection includes one or more selected DICOM SOP instancesinstance[0..*]Each imaging selection might includes a 3D image region, specified by a region type and a set of 3D coordinatesimageRegion3D[0..*]

XML Template

<ImagingSelection xmlns="http://hl7.org/fhir"> doco
 <!-- from Resource: id, meta, implicitRules, and language -->
 <!-- from DomainResource: text, contained, extension, and modifierExtension -->
 <identifier><!-- 0..* Identifier Business Identifier for Imaging Selection --></identifier>
 <status value="[code]"/><!-- 1..1 available | entered-in-error | inactive | unknown -->
 <category><!-- 0..* CodeableConcept Classifies the imaging selection icon --></category>
 <code><!-- 1..1 CodeableConcept Imaging Selection purpose text or code icon --></code>
 <subject><!-- 0..1 Reference(Device|Group|Medication|Patient|Practitioner|
   Procedure|Specimen|Substance) Subject of the selected instances --></subject>
 <issued value="[instant]"/><!-- 0..1 Date / Time when this imaging selection was created -->
 <performer>  <!-- 0..* Selectors of the instances (human or machine) -->
  <function><!-- 0..1 CodeableConcept Type of performer --></function>
  <actor><!-- 0..1 Reference(CareTeam|Device|HealthcareService|Organization|
    Patient|Practitioner|PractitionerRole|RelatedPerson) Author (human or machine) --></actor>
 </performer>
 <basedOn><!-- 0..* Reference(Appointment|AppointmentResponse|CarePlan|
   ServiceRequest|Task) Associated requests --></basedOn>
 <derivedFrom><!-- 0..* Reference(DocumentReference|ImagingStudy) The imaging study from which the imaging selection is derived --></derivedFrom>
 <studyUid value="[id]"/><!-- 0..1 DICOM Study Instance UID -->
 <seriesUid value="[id]"/><!-- 0..1 DICOM Series Instance UID -->
 <seriesNumber value="[unsignedInt]"/><!-- 0..1 DICOM Series Number -->
 <frameOfReferenceUid value="[id]"/><!-- 0..1 The Frame of Reference UID for the selected images -->
 <bodySite><!-- 0..* CodeableReference(BodyStructure) Body part examined --></bodySite>
 <focus><!-- 0..* Reference(ImagingSelection) Related resources that are the focus for the imaging selection --></focus>
 <endpoint><!-- 0..* Reference(Endpoint) The network services providing retrieval for the images referenced in the imaging selection --></endpoint>
 <instance>  <!-- 0..* The selected instances -->
  <uid value="[id]"/><!-- 1..1 DICOM SOP Instance UID -->
  <number value="[unsignedInt]"/><!-- 0..1 DICOM Instance Number -->
  <sopClass value="[oid]"/><!-- 0..1 DICOM SOP Class UID -->
  <subset value="[string]"/><!-- 0..* The selected subset of the SOP Instance -->
  <imageRegion2D>  <!-- 0..* A specific 2D region in a DICOM image / frame -->
   <regionType value="[code]"/><!-- 1..1 point | polyline | multipoint | circle | ellipse -->
   <coordinate value="[decimal]"/><!-- 1..* Specifies the coordinates that define the image region -->
  </imageRegion2D>
 </instance>
 <imageRegion3D>  <!-- 0..* A specific 3D region in a DICOM frame of reference -->
  <regionType value="[code]"/><!-- 1..1 point | multipoint | polyline | polygon | ellipse | ellipsoid -->
  <coordinate value="[decimal]"/><!-- 1..* Specifies the coordinates that define the image region -->
 </imageRegion3D>
</ImagingSelection>

JSON Template

{doco
  "resourceType" : "ImagingSelection",
  // from Resource: id, meta, implicitRules, and language
  // from DomainResource: text, contained, extension, and modifierExtension
  "identifier" : [{ Identifier }], // Business Identifier for Imaging Selection
  "status" : "<code>", // R!  available | entered-in-error | inactive | unknown
  "category" : [{ CodeableConcept }], // Classifies the imaging selection icon
  "code" : { CodeableConcept }, // R!  Imaging Selection purpose text or code icon
  "subject" : { Reference(Device|Group|Medication|Patient|Practitioner|
   Procedure|Specimen|Substance) }, // Subject of the selected instances
  "issued" : "<instant>", // Date / Time when this imaging selection was created
  "performer" : [{ // Selectors of the instances (human or machine)
    "function" : { CodeableConcept }, // Type of performer
    "actor" : { Reference(CareTeam|Device|HealthcareService|Organization|
    Patient|Practitioner|PractitionerRole|RelatedPerson) } // Author (human or machine)
  }],
  "basedOn" : [{ Reference(Appointment|AppointmentResponse|CarePlan|
   ServiceRequest|Task) }], // Associated requests
  "derivedFrom" : [{ Reference(DocumentReference|ImagingStudy) }], // The imaging study from which the imaging selection is derived
  "studyUid" : "<id>", // DICOM Study Instance UID
  "seriesUid" : "<id>", // DICOM Series Instance UID
  "seriesNumber" : "<unsignedInt>", // DICOM Series Number
  "frameOfReferenceUid" : "<id>", // The Frame of Reference UID for the selected images
  "bodySite" : [{ CodeableReference(BodyStructure) }], // Body part examined
  "focus" : [{ Reference(ImagingSelection) }], // Related resources that are the focus for the imaging selection
  "endpoint" : [{ Reference(Endpoint) }], // The network services providing retrieval for the images referenced in the imaging selection
  "instance" : [{ // The selected instances
    "uid" : "<id>", // R!  DICOM SOP Instance UID
    "number" : "<unsignedInt>", // DICOM Instance Number
    "sopClass" : "<oid>", // DICOM SOP Class UID
    "subset" : ["<string>"], // The selected subset of the SOP Instance
    "imageRegion2D" : [{ // A specific 2D region in a DICOM image / frame
      "regionType" : "<code>", // R!  point | polyline | multipoint | circle | ellipse
      "coordinate" : [<decimal>] // R!  Specifies the coordinates that define the image region
    }]
  }],
  "imageRegion3D" : [{ // A specific 3D region in a DICOM frame of reference
    "regionType" : "<code>", // R!  point | multipoint | polyline | polygon | ellipse | ellipsoid
    "coordinate" : [<decimal>] // R!  Specifies the coordinates that define the image region
  }]
}

Turtle Template

@prefix fhir: <http://hl7.org/fhir/> .doco


[ a fhir:ImagingSelection;
  fhir:nodeRole fhir:treeRoot; # if this is the parser root

  # from Resource: .id, .meta, .implicitRules, and .language
  # from DomainResource: .text, .contained, .extension, and .modifierExtension
  fhir:identifier  ( [ Identifier ] ... ) ; # 0..* Business Identifier for Imaging Selection
  fhir:status [ code ] ; # 1..1 available | entered-in-error | inactive | unknown
  fhir:category  ( [ CodeableConcept ] ... ) ; # 0..* Classifies the imaging selection
  fhir:code [ CodeableConcept ] ; # 1..1 Imaging Selection purpose text or code
  fhir:subject [ Reference(Device|Group|Medication|Patient|Practitioner|Procedure|Specimen|Substance) ] ; # 0..1 Subject of the selected instances
  fhir:issued [ instant ] ; # 0..1 Date / Time when this imaging selection was created
  fhir:performer ( [ # 0..* Selectors of the instances (human or machine)
    fhir:function [ CodeableConcept ] ; # 0..1 Type of performer
    fhir:actor [ Reference(CareTeam|Device|HealthcareService|Organization|Patient|Practitioner|
  PractitionerRole|RelatedPerson) ] ; # 0..1 Author (human or machine)
  ] ... ) ;
  fhir:basedOn  ( [ Reference(Appointment|AppointmentResponse|CarePlan|ServiceRequest|Task) ] ... ) ; # 0..* Associated requests
  fhir:derivedFrom  ( [ Reference(DocumentReference|ImagingStudy) ] ... ) ; # 0..* The imaging study from which the imaging selection is derived
  fhir:studyUid [ id ] ; # 0..1 DICOM Study Instance UID
  fhir:seriesUid [ id ] ; # 0..1 DICOM Series Instance UID
  fhir:seriesNumber [ unsignedInt ] ; # 0..1 DICOM Series Number
  fhir:frameOfReferenceUid [ id ] ; # 0..1 The Frame of Reference UID for the selected images
  fhir:bodySite  ( [ CodeableReference(BodyStructure) ] ... ) ; # 0..* Body part examined
  fhir:focus  ( [ Reference(ImagingSelection) ] ... ) ; # 0..* Related resources that are the focus for the imaging selection
  fhir:endpoint  ( [ Reference(Endpoint) ] ... ) ; # 0..* The network services providing retrieval for the images referenced in the imaging selection
  fhir:instance ( [ # 0..* The selected instances
    fhir:uid [ id ] ; # 1..1 DICOM SOP Instance UID
    fhir:number [ unsignedInt ] ; # 0..1 DICOM Instance Number
    fhir:sopClass [ oid ] ; # 0..1 DICOM SOP Class UID
    fhir:subset  ( [ string ] ... ) ; # 0..* The selected subset of the SOP Instance
    fhir:imageRegion2D ( [ # 0..* A specific 2D region in a DICOM image / frame
      fhir:regionType [ code ] ; # 1..1 point | polyline | multipoint | circle | ellipse
      fhir:coordinate  ( [ decimal ] ... ) ; # 1..* Specifies the coordinates that define the image region
    ] ... ) ;
  ] ... ) ;
  fhir:imageRegion3D ( [ # 0..* A specific 3D region in a DICOM frame of reference
    fhir:regionType [ code ] ; # 1..1 point | multipoint | polyline | polygon | ellipse | ellipsoid
    fhir:coordinate  ( [ decimal ] ... ) ; # 1..* Specifies the coordinates that define the image region
  ] ... ) ;
]

Changes from both R4 and R4B

This resource did not exist in Release R4

See the Full Difference for further information

This analysis is available for R4 as XML or JSON and for R4B as XML or JSON.

 

Additional definitions: Master Definition XML + JSON, XML Schema/Schematron + JSON Schema, ShEx (for Turtle) + see the extensions, the spreadsheet version & the dependency analysis

10.6.4.1 Terminology Bindings

Path ValueSet Type Documentation
ImagingSelection.status ImagingSelectionStatus Required

The status of the ImagingSelection.
ImagingSelection.category KeyObjectSelectionDocumentTitle icon Example

Transitive closure of CID 7010 KeyObjectSelectionDocumentTitle
ImagingSelection.code KeyObjectSelectionDocumentTitle icon Example

Transitive closure of CID 7010 KeyObjectSelectionDocumentTitle
ImagingSelection.performer.function ImagingStudySeriesPerformerFunction Extensible

Performer function of an agent in an imaging study series
ImagingSelection.bodySite SNOMEDCTBodyStructures Example

This value set includes all codes from SNOMED CT icon where concept is-a 442083009 (Anatomical or acquired body site (body structure)).
ImagingSelection.instance.imageRegion2D.regionType ImagingSelection2DGraphicType Required

The type of 2D coordinates describing a 2D image region.
ImagingSelection.imageRegion3D.regionType ImagingSelection3DGraphicType Required

The type of coordinates describing a 3D image region.

10.6.5 Notes

10.6.5.1 Imaging Selection Subsets

Some DICOM SOP Instances contain multiple sub-resources, such as frames, segments, etc.

An Imaging Selection resource may specify the subset of these that are included in the selection using the instance.subset element.

The defined types of subsets are:

  • Frames selected from a multiframe SOP Instance
  • Referenced Content Item Identifiers selected from a DICOM SR or other structured document SOP Instance
  • Segments selected from a segmentation SOP Instance
  • Regions of interest selected from a radiotherapy structure set SOP Instance

The type of subset is determined by the SOP Class of the parent instance.

Subsets can only reference sub-resources that are already defined within the selected DICOM SOP Instance.

10.6.5.2 Use of ImagingSelection.code and ImagingSelection.category

The code and category element can be used to information relevant for applications that want to identify specific types of ImagingSelection resources.

As code is required and limited to a single value, it holds the primary purpose of the ImagingSelection. Additional applicable values populate the category element.

For example, if an ImagingSelection is used to identify a set of images that make up a volume rendered view, the code could contain a code indicating Volume Rendering - such as RadLex RID35862 - and the category could contain values of the DICOM Image Type (0008,0008) attribute - such as DERVIED and SECONDARY. 

  {
    "resource": {
      "resourceType": "ImagingSelection",
      "id": "fa8e0948175f3117a3b8c4be2ff972ec",
      "subject": {
        "reference": "Patient/acb045960122378999c97cd7ca532f8b"
      },
      "code": {
        "coding": [
          {
            "system": "http://radlex.org/",
            "code": "RID12769",
            "display": "volume rendering"
          }
        ]
      },
      "category": [
        {
          "text": "DERIVED"
        },
        {
          "text": "SECONDARY"
        }
      ]
    }
  }

10.6.6 Search Parameters

Search parameters for this resource. See also the full list of search parameters for this resource, and check the Extensions registry for search parameters on extensions related to this resource. The common parameters also apply. See Searching for more information about searching in REST, messaging, and services.

Name Type Description Expression In Common
based-on reference The request associated with an imaging selection ImagingSelection.basedOn
(Appointment, AppointmentResponse, CarePlan, Task, ServiceRequest)
body-site token The body site code associated with the imaging selection ImagingSelection.bodySite.concept
body-structure reference The body structure associated with the imaging selection ImagingSelection.bodySite.reference
category token The imaging selection category ImagingSelection.category
code token The imaging selection description text or code ImagingSelection.code 21 Resources
derived-from reference The imaging study from which the imaging selection was derived ImagingSelection.derivedFrom
(ImagingStudy, DocumentReference)
identifier token Identifiers for the imaging selection ImagingSelection.identifier 65 Resources
issued date The date / time the imaging selection was created ImagingSelection.issued
patient reference Who the study is about ImagingSelection.subject.where(resolve() is Patient)
(Patient)		 65 Resources
status token The status of the imaging selection ImagingSelection.status
study-uid token The DICOM Study Instance UID from which the images were selected ImagingSelection.studyUid
subject reference The subject of the Imaging Selection, such as the associated Patient ImagingSelection.subject
(Practitioner, Group, Specimen, Device, Medication, Patient, Procedure, Substance)