DICOM PS3.3 2022c - Information Object Definitions

C.17.6.2 Key Object Document Module

Table C.17.6-2 defines the general Attributes of a Key Object Selection Document. These Attributes identify and provide context for the Key Object Selection Document.

Table C.17.6-2. Key Object Document Module Attributes

Attribute Name

Tag

Type

Attribute Description

Instance Number

(0020,0013)

1

A number that identifies the Document.

Content Date

(0008,0023)

1

The date the document content creation started.

Content Time

(0008,0033)

1

The time the document content creation started.

Referenced Request Sequence

(0040,A370)

1C

Identifies Requested Procedures to which this Document pertains.

One or more Items shall be included in this Sequence.

Required if this Document pertains to at least one Requested Procedure.

>Include Table C.17-3c “Referenced Request Macro Attributes”

Current Requested Procedure Evidence Sequence

(0040,A375)

1

List of all Composite SOP Instances referenced in the Content Sequence (0040,A730). The current evidence is considered to be only the set of Instances referenced within the Key Object Selection.

One or more Items shall be included in this Sequence.

>Include Table C.17-3 “Hierarchical SOP Instance Reference Macro Attributes”

Identical Documents Sequence

(0040,A525)

1C

Duplicates of this document, stored with different SOP Instance UIDs.

One or more Items shall be included in this Sequence.

Required if this Key Object Selection document references Instances in more than one Study.

See Section C.17.2.2 and Section C.17.6.2.1 for further explanation and conditions.

>Include Table C.17-3 “Hierarchical SOP Instance Reference Macro Attributes”


C.17.6.2.1 Identical Documents

If the Current Requested Procedure Evidence Sequence (0040,A375) references SOP Instances both in the current Study and in one or more other Studies, this document shall be duplicated into each of those other Studies, and the duplicates shall be referenced in the Identical Documents Sequence (0040,A525).

Note

Thus a Key Object Selection Document that references images in the current Study as well as in a prior or comparison Study, would be duplicated into the other Study. This allows an application displaying that other Study to easily access notes relevant to that Study's SOP Instances.

DICOM PS3.3 2022c - Information Object Definitions