A.35.6 Chest CAD SR Information Object Definition

A.35.6.1 Chest CAD SR Information Object Description

The Chest CAD SR IOD is used to convey the detection and analysis results of a chest CAD device. The content may include textual and a variety of coded information, numeric measurement values, references to the SOP Instances, and spatial regions of interest within such SOP Instances. Relationships by-reference are enabled between Content Items.

A.35.6.2 Chest CAD SR IOD Entity-Relationship Model

The E-R Model in Section A.1.2 of this Part applies to the Chest CAD SR IOD. The Frame of Reference IE, and the IEs at the level of the Image IE in Section A.1.2 are not components of the Chest CAD SR IOD. Table A.35.6-1 specifies the Modules of the Chest CAD SR IOD.

A.35.6.3 Chest CAD SR IOD Module Table

Table A.35.6-1 specifies the Modules of the Chest CAD SR IOD.

Table A.35.6-1CHEST CAD SR IOD MODULES

IE Module Reference Usage
Patient Patient C.7.1.1 M
Clinical Trial Subject C.7.1.3 U
Study General Study C.7.2.1 M
Patient Study C.7.2.2 U
Clinical Trial Study C.7.2.3 U
Series SR Document Series C.17.1 M
Clinical Trial Series C.7.3.2 U
Equipment General Equipment C.7.5.1 M
Document SR Document General C.17.2 M
SR Document Content C.17.3 M
SOP Common C.12.1 M

Note: The Specimen Identification Module was previously included in this IOD but has been retired. See PS 3.3-2008.

A.35.6.3.1 Chest CAD SR IOD Content Constraints

A.35.6.3.1.1 Template Constraints

Note: All Template and Context Group definitions are located in PS 3.16, DICOM Content Mapping Resource, in the Annexes titled DCMR Templates and DCMR Context Groups, respectively.

A.35.6.3.1.2 Value Type

Value Type (0040,A040) in the Content Sequence (0040,A730) of the SR Document Content Module is constrained to the following Enumerated Values (see Table C.17.3-7 for Value Type definitions):

TEXT

CODE

NUM

DATE

TIME

PNAME

SCOORD

TCOORD

COMPOSITE

IMAGE

CONTAINER

UIDREF

WAVEFORM

A.35.6.3.1.3 Relationship Constraints

The Chest CAD SR IOD makes use of by-reference INFERRED FROM, by-reference SELECTED FROM, and by-reference HAS PROPERTIES relationships. Other relationships by-reference are forbidden. Table A.35.6-2 specifies the relationship constraints of this IOD. See Table C.17.3-8 for Relationship Type definitions.

Table A.35.6-2RELATIONSHIP CONTENT CONSTRAINTS FOR CHEST CAD SR IOD

Source Value Type Relationship Type (Enumerated Values) Target Value Type
CONTAINER CONTAINS CODE, NUM, IMAGE1, CONTAINER.
TEXT, CODE, NUM, CONTAINER HAS OBS CONTEXT TEXT, CODE, NUM, DATE, TIME, PNAME, UIDREF, COMPOSITE1.
IMAGE, WAVEFORM HAS ACQ CONTEXT TEXT, CODE, DATE, TIME, NUM.
CONTAINER, CODE, COMPOSITE, NUM HAS CONCEPT MOD TEXT, CODE2.
TEXT, CODE, NUM HAS PROPERTIES CONTAINER, TEXT, CODE, NUM, DATE, IMAGE1, WAVEFORM1, SCOORD, TCOORD, UIDREF.
CODE, NUM INFERRED FROM CODE, NUM, IMAGE1, WAVEFORM1, SCOORD, TCOORD, CONTAINER, TEXT.
SCOORD SELECTED FROM IMAGE1.
TCOORD SELECTED FROM SCOORD, IMAGE1, WAVEFORM1.

Note: 1. Which SOP Classes the IMAGE or COMPOSITE Value Type may refer to, is documented in the Conformance Statement for an application (see PS 3.2 and PS 3.4).

2. The HAS CONCEPT MOD relationship is used to modify the meaning of the Concept Name of a Source Content Item, for example to provide a more descriptive explanation, a different language translation, or to define a post-coordinated concept.