DICOM PS3.18 2021e - Web Services

8.7.2 DICOM Resource Categories

Table 8.7.2-1 defines Resource Categories that correspond to different SOP Classes. The following sections map each Resource Category to appropriate DICOM and Rendered media types.

Table 8.7.2-1. Resource Categories

Resource Category

Definition

Single Frame Image

This category includes all resources that are:

  1. Instances of a single frame SOP Class, or

  2. Instances of a multi-frame SOP Class that contain only one frame, or

  3. a single frame selected from an Instance of a multi-frame SOP Class.

Multi-Frame Image

This category includes all resources that are Instances of a multi-frame SOP Class, that are not Video and that contain more than one frame.

Video

This category includes all resources that contain more than one frame and are:

  1. Instances encoded in the MPEG family of Transfer Syntaxes (which includes MPEG2, MPEG-4 AVC/H.264 and HEVC/H.265), or

  2. time-based (motion) multi-frame images that the origin server is capable of encoding in the MPEG family.

Text

This category includes all resources that contain:

  1. the SR Document Content Module (see Section C.17.3 “SR Document Content Module” in PS3.3), such as narrative text, Structured Reports, CAD, measurement reports, and key object selection documents, or

  2. the Encapsulated Document Module (see Section C.24.2 “Encapsulated Document Module” in PS3.3).

Other

This category includes all resources that are not included above, for example waveforms.


Note

The Resource Category is independent of the Transfer Syntax used to natively encode or return the Resource. In particular, if the Transfer Syntax is one of the JPIP Transfer Syntaxes (for which the pixel data is not included in the returned objects, but rather a URL of the JPIP provider for retrieving the pixel data is present in the metadata) the Resource Category will still be Single Frame Image or Multi-Frame Image, and not Text or Other.

DICOM PS3.18 2021e - Web Services