A selection of DICOM SOP instances and/or frames within a single Study and Series. This might include additional specifics such as a set of frames or 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.

Unique Business identifiers assigned to this imaging selection. selection by the performer and/or other systems. These identifiers remain constant as the resource is updated and propagates from server to server.

Allows identification of the imaging selections to be distinguished selection as it is known by various participating systems and referenced. in a way that remains consistent across servers.

Note: This is a business identifiers, identifier, not a resource identifier -- see discussion under (see Business Identifiers . discussion ). It is best practice for the identifier to only appear on a single resource instance, however business practices MAY occasionally dictate that multiple resource instances with the same identifier can exist - possibly even with different resource types. For example, multiple Patient and a Person resource instance might share the same social insurance number.

The current state of the imaging selection. This is distinct from the status of any imaging study, service request, or task associated with the imaging selection.

Unknown does not represent "other" - one of the defined statuses SHALL must apply. Unknown is used when the authoring system is not sure what the current status is.

Classifies the general purpose of the imaging selection.

Used for filtering what imaging selections are retrieved and displayed.

The distinct modality for this selected series. This MAY be either an acquisition modality (e.g. CT, MR) or a non-acquisition modality (e.g. segmentation, presentation state).

Identifies the type of imaging selection.

Identifies the type of content and the structure of the imaging selection.

The subject, typically a 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 placed. selection.

The date Date and time this the imaging selection was created.

Selectors of the instances – human Indicates who or machine. what performed the imaging selection and how they were involved.

Distinguishes the type of involvement of the performer. performer in the imaging selection.

Allows disambiguation of the types and of involvement of different performers.

Author - human Indicates who or machine. what performed the imaging selection.

A list of the diagnostic requests plan or order that resulted is fulfilled in whole or in part by this imaging selection being performed. selection.

Allows tracing of authorization for the imaging selection and tracking whether proposals/recommendations were acted upon. If the imaging selection is associated with an Accession Number, this field SHOULD include a reference to that value in the form: identifier.value = (Accession Number Value) identifier.type = ACSN. A reference value pointing to a ServiceRequest resource is allowed but is not required.

The imaging study from which the imaging selection is made.

The Study Instance UID for the DICOM Study from which the images were selected.

See DICOM PS3.3 C.7.2 .

The DICOM Series Instance UID for the DICOM Series from which of the images were selected. selected series.

Must correspond to a Series that is part of the DICOM study identified by the studyUid element.

See DICOM PS3.3 C.7.3 .

The Series Number for numeric identifier of the DICOM Series from which selected series in the images were selected. study.

DICOM Series Number. Must correspond to the series identified by the seriesUid element.

See DICOM PS3.3 C.7.3 .

Uniquely identifies groups of Identifier used to group composite instances that have the same coordinate system that conveys spatial and/or temporal information.

See DICOM PS3.3 C.7.4.1 .

The anatomic structures examined. selected. See DICOM Part 16 Annex L for DICOM to SNOMED-CT mappings. The bodySite MAY include the laterality of body part imaged.

The actual focus of an imaging selection when it is another imaging selection resource and not the patient of record.

An imaging selection MAY reference a DICOM resource that itself references other DICOM resources. e.g. a presentation state references a set of source images or frames.

The network services providing retrieval access to the selected images, frames, etc. See implementation notes for information about using DICOM endpoints.

Each imaging selection includes one or more selected DICOM SOP instances.

If this element is not present and ImagingSelection.seriesUid is present, all instances in the specified series are included in the selection.

The SOP Instance UID for the selected DICOM instance. this image or other DICOM content.

DICOM SOP Instance UID. Must correspond to a SOP Instance that is part of the DICOM series identified by the seriesUID element.

See DICOM PS3.3 C.12.1 .

The Instance Number for TThe number of the selected DICOM instance. instance assigned by the creator of the series. MAY or MAY NOT correspond to intended display order.

DICOM Instance Number. Must correspond to the SOP Instance identified by the uid element.

See DICOM PS3.3 C.7.6.1 . Note: A multiframe instance has a single instance number with each frame identified by a frame number.

The SOP Class UID for the selected DICOM instance. instance type.

See DICOM PS3.3 C.12.1 .

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 (See DICOM PS 3.3 Table 10.3 ).

Only allowed if the value of instance.sopClass corresponds to a multiframe SOP Class.

A list of Referenced Content Item Identifier values selected from a DICOM SR or other structured document SOP Instance (See DICOM PS 3.3 C.17.3.2.5 ).

Only allowed if the value of instance.sopClass corresponds to a DICOM SR or other structured document SOP Class.

A list of segment numbers selected from a segmentation SOP Instance (See DICOM PS 3.3 Table C.8.20-4 ).

Only allowed if the value of instance.sopClass corresponds to a segmentation SOP Class.

A list of Region of Interest (ROI) numbers selected from a radiotherapy structure set SOP Instance (See DICOM PS 3.3 C.8.8.5 ).

Only allowed if the value of instance.sopClass corresponds to a radiotherapy structure set SOP Instance Class.

A list of channels in a Waveform selected from an instance of a waveform SOP Class. Each channel is specified as a pair of values where the first value is the Multiplex Group Number, and the second value is the Channel Number within the multiplex group (See DICOM PS 3.3 C.18.5.1.1 ).

Only allowed if the value of instance.sopClass corresponds to a waveform structure set SOP Class.

Each imaging selection instance or frame list might includes Specifies an image region, specified defined by a region type and a set of 2D coordinates. coordinates in pixel space.

Shall not SHALL NOT be present if the parent imagingSelection.instance is not an image. If the parent imagingSelection.instance contains a subset element of type frame, the image region applies to all frames in the subset list.

Specifies the The type of image region.

See DICOM PS3.3 C.10.5.1.2 .

The coordinates describing defining 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 SHALL be within the range 0\0 to the number of columns\rows in the image / frames.

The number of values SHALL be a multiple of two.

For a description of how 2D coordinates are encoded, see DICOM PS 3.3 C.18.6 .

Each imaging selection might includes Specifies a 3D image region, specified defined by a region type and a set of 3D coordinates.

The referenced 3D image region must be in the coordinate system identified by the frameOfReferenceUid element

Specifies the type of image region.

See DICOM PS3.3 C.18.9.1.2 .

The coordinates describing defining 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 element.

The number of values SHALL be a multiple of three.

For a description of how 3D coordinates are encoded, see DICOM PS3.3 C.18.9 .