A selection of DICOM SOP instances within a single Study and Series. This might include additional specifics such as a set of frames or an image region, allowing linkage to an Observation Resource. A selection of DICOM SOP instances within a single Study and Series. This might include additional specifics such as a set of frames or an image region, allowing linkage to an Observation Resource. If the element is present, it must have either a @value, an @id, or extensions Business identifiers assigned to this imaging selection by the performer and/or other systems. These identifiers remain constant as the resource is updated and propagates from server to server. 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. Classifies the general purpose of the imaging selection. 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. The subject, typically a patient, of the imaging selection. Date and time the imaging selection was created. Indicates who or what performed the imaging selection and how they were involved. A plan or order that is fulfilled in whole or in part by this imaging selection. The imaging study from which the imaging selection is made. The Study Instance UID for the DICOM Study from which the images were selected. The DICOM Series Instance UID of the selected series. The numeric identifier of the selected series in the study. Identifier used to group composite instances that have the same coordinate system that conveys spatial and/or temporal information. The anatomic structures selected. See [DICOM Part 16 Annex L](http://dicom.nema.org/medical/dicom/current/output/chtml/part16/chapter_L.html) 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. The network services providing 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. Specifies a 3D image region, defined by a region type and a set of 3D coordinates. A selection of DICOM SOP instances within a single Study and Series. This might include additional specifics such as a set of frames or an image region, allowing linkage to an Observation Resource. Distinguishes the type of involvement of the performer in the imaging selection. Indicates who or what performed the imaging selection. A selection of DICOM SOP instances within a single Study and Series. This might include additional specifics such as a set of frames or an image region, allowing linkage to an Observation Resource. The SOP Instance UID for the selected DICOM this image or other DICOM content. The number of the instance assigned by the creator of the series. MAY or MAY NOT correspond to intended display order. DICOM instance type. A list of frame numbers selected from a multiframe SOP Instance (See [DICOM PS 3.3 Table 10.3](https://dicom.nema.org/medical/dicom/current/output/chtml/part03/sect_10.3.html#table_10-3)). 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](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 PS 3.3 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 PS 3.3 C.8.8.5](https://dicom.nema.org/medical/dicom/current/output/chtml/part03/sect_C.8.8.5.html)). 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](https://dicom.nema.org/medical/dicom/current/output/chtml/part03/sect_C.18.5.html#sect_C.18.5.1.1)). Specifies an image region, defined by a region type and a set of 2D coordinates in pixel space. A selection of DICOM SOP instances within a single Study and Series. This might include additional specifics such as a set of frames or an image region, allowing linkage to an Observation Resource. The type of image region. The coordinates 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. A selection of DICOM SOP instances within a single Study and Series. This might include additional specifics such as a set of frames or an image region, allowing linkage to an Observation Resource. Specifies the type of image region. The coordinates 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. Available Entered in Error Inactive Unknown If the element is present, it must have either a @value, an @id, or extensions POINT MULTIPOINT POLYLINE POLYGON ELLIPSE ELLIPSOID If the element is present, it must have either a @value, an @id, or extensions