A.5.1.4.3 Observer Context

The Observer Context (TID 1002, PS 3.16) maps to the author participation and associated roles and entities at document or section level. DICOM specifies a Person Observer (TID 1003, PS 3.16) and a Device Observer (TID 1004, PS 3.16). Depending on the DICOM SR Observer Type, attribute values are mapped to the Person or AuthoringDevice Entity in the AuthorChoice Box.

The Person and Device Observer Context used at document level (Figure A.5.1.3-9) may be overridden at section level (Figure A.5.1.3-10).

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Figure A.5.1.3-9: DOCUMENT OBSERVER CONTEXT

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Figure A.5.1.3-10: SECTION OBSERVER CONTEXT

Table A.5.1.3-13

AUTHOR PARTICIPATION (FOR BOTH PERSON AND DEVICE OBSERVER)

Attribute Data Type Multiplicity Value
typeCode CS 1..1 AUT
functionCode CE 0..1 Shall not be sent
contextControlCode CS 1..1 “OP”
time TS 1..1 Content Date (0008,0023), Content Time (0008,0033) of the SR Document General Module and Timezone Offset from UTC (0008,0201) from SOP Common Module

A.5.1.4.3.1 Person Observer

Attribute values of Template 1003 in PS 3.16 “Person Observer Identifying Attributes” and the SR Document General Module are mapped to the CDA author participation, associated role and entities as specified in tables A.5.1.3-13 and A.5.1.3-14 to A.5.1.3-16. The DICOM attribute values of Person Observer’s Role in this procedure and Person Observer’s Role in the Organization cannot be mapped to CDA Release 2 since it does not specify equivalent attributes.

Table A.5.1.3-14

ASSIGNED AUTHOR, PERSON OBSERVER CONTEXT

Attribute Data Type Multiplicity Value
classCode CS 1..1 ASSIGNED
templateId LIST<II> 1..* At section level set root portion of II to “2.16.840.1.113883.10.20.6.2.4” (identifies the template that defines constraints on “Observer Context” of CDA Diagnostic Imaging Reports as specified by CDA R2 DIR IG).
id SET<II> 1..* Person Identification Code Sequence (0040,1101) of Author Observer Sequence (0040,A078) in SR Document General Module.
addr SET<AD> 0..* Shall not be sent.
telecom SET<TEL> 0..* Shall not be sent.

Table A.5.1.3-15

ORGANIZATION, PERSON OBSERVER CONTEXT

Attribute Data Type Multiplicity Value
classCode CS 1..1 ORG
determinerCode CS 1..1 INSTANCE
id SET<II> 0..* Institution Code Sequence (0008,0082) of Author Observer Sequence (0040,A078) in SR Document General Module
name SET<ON> 0..* Defaults to Institution Name (0008,0080) of the General Equipment Module; otherwise Person Observer’s Organization Name as specified in TID 1003 is used.
telecom SET<TEL> 0..* Shall not be sent.
addr SET<AD> 0..* Shall not be sent.
standardIndustryClassCode CE 0..1 Shall not be sent.

Table A.5.1.3-16

PERSON, PERSON OBSERVER CONTEXT

Attribute Data Type Multiplicity Value
classCode CS 1..1 PSN
determinerCode CS 1..1 INSTANCE
name SET<PN> 0..* Defaults to Person Name (0040,A123) of Author Observer Sequence (0040,A078) in SR Document General Module; otherwise Person Observer Name as specified in TID 1003 is used.

A.5.1.4.3.2 Device Observer

Attribute values of Template 1004 in PS 3.16 “Device Observer Identifying Attributes” and the SR Document General Module are mapped to the CDA author participation, associated role and entities as specified in tables A.5.1.3-13 and A.5.1.3-17 to A.5.1.3-19. DICOM does not specify attributes that could be mapped to MaintainedEntity role and associated Person entity.

Table A.5.1.3-17

ASSIGNED AUTHOR, DEVICE OBSERVER CONTEXT

Attribute Data Type Multiplicity Value
classCode CS 1..1 ASSIGNED
templateId LIST<II> 1..* At section level set root portion of II to “2.16.840.1.113883.10.20.6.2.4” (identifies the template that defines constraints on “Observer Context” of CDA Diagnostic Imaging Reports as specified by CDA R2 DIR IG).
id SET<II> 1..* Device Observer UID as specified in TID 1004
addr SET<AD> 0..* Device Observer Physical Location During Observation as specified by TID 1004 is used.
telecom SET<TEL> 0..* Shall not be sent.

The DICOM attribute Device Observer Serial Number specified in TID 1004 cannot be mapped to CDA Release 2 because there is no equivalent attribute specified.

Table A.5.1.3-18

AUTHORING DEVICE, DEVICE OBSERVER CONTEXT

Attribute Data Type Multiplicity Value
classCode CS 1..1 DEV
determinerCode CS 1..1 INSTANCE
code CE 0..1 Defaults to Station Name (0008,1010) of Author Observer Sequence (0040,A078) in SR Document General Module.
manufacturerModelName SC 0..1 Defaults to Manufacturer’s Model Name (0008,1090) of Author Observer Sequence (0040,A078) in SR Document General Module; otherwise to Device Observer Model Name as specified by TID 1004 is used.
softwareName SC 0..1 Shall not be sent.

Table A.5.1.3-19

ORGANIZATION, DEVICE OBSERVER CONTEXT

Attribute Data Type Multiplicity Value
classCode CS 1..1 ORG
determinerCode CS 1..1 INSTANCE
id SET<II> 0..* Shall not be sent.
name SET<ON> 0..* Manufacturer (0008,0070) of Author Observer Sequence (0040,A078) in SR Document General Module
telecom SET<TEL> 0..* Shall not be sent.
addr SET<AD> 0..* Shall not be sent.
standardIndustryClassCode CE 0..1 Shall not be sent.