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Digital Imaging and Communications in Medicine (DICOM)
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Supplement 185: Object Evaluation Results IOD
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DICOM Standards Committee, Working Group 7, Radiation Therapy
1300 N. 17th Street, Suite 1752
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Rosslyn, Virginia 22209 USA
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VERSION:
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Developed pursuant to DICOM Workitem 2000-11-B
Sup 185 - Revision 13
March 23, 2015
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This is a draft document. Do not circulate, quote, or reproduce it except with the approval of NEMA.
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Table of Contents
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Table of Contents ..................................................................................................................... 2
Foreword ................................................................................................................................... 3
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Scope and Field of Application ................................................................................................. 3
Part 2 Addendum ...................................................................................................................... 3
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10
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Part 3 Addendum ...................................................................................................................... 4
A.X........ OBJECT EVALUATION RESULTS OBJECT DEFINITION ................................ 4
A.X.1 ........ Object Evaluation Results IOD Description ............................................... 4
A.X.2 ........ Object Evaluation Results IOD Entity-Relationship Model ......................... 4
A.X.3 ........ Object Evaluation Results IOD Module Table............................................ 5
C.8.8.x ..... Object Evaluation Results Module ............................................................. 5
Part 4 Addendum .................................................................................................................... 10
Part 6 Addendum .................................................................................................................... 11
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ANNEX A
REGISTRY OF DICOM UNIQUE IDENTIFIERS (UID) (NORMATIVE) . 12
Part 16 Addendum .................................................................................................................. 13
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CID 7445
DEVICE PARTICIPATING ROLES ........................................................ 13
CID YYY1
OBJECT EVALUATION NUMERIC REPORTING TYPES .................... 14
CID YYY2
OBJECT EVALUATION TEXT REPORTING TYPES ........................... 14
CID YYY3
OBJECT EVALUATION NON-SPECIFIC REPORTING TYPES ........... 14
CID YYY4
OBJECT EVALUATION TYPE ............................................................... 15
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Foreword
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This Supplement specifies a new IOD and supporting entries to describe the results of a clinical evaluation
of the content of a DICOM Object.
This document is an extension to the following parts of the published DICOM Standard:
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8
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PS 3.2
Conformance
PS 3.3
Information Object Definitions
PS 3.4
Service Class Specifications
PS 3.6
Data Dictionary
PS 3.16
Content Mapping Resource
Scope and Field of Application
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This Supplement specifies the IOD representing object evaluation findings against reference information.
It stems from the development of the Quality Assurance with Plan Veto profile in IHE-RO. While the profile
originated from use cases to evaluate RT Plan, the IOD is generalized to allow for reporting of evaluation
results involving any DICOM object.
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Part 2 Addendum
Add new SOP Classes to PS3.2 Table A.1-2 UID Values:
UID Value
1.2.840.10008.5.1.4.1.1.xx.y.z
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UID Name
Object Evaluation Results Storage
Category
Transfer
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Part 3 Addendum
Add the following column in PS3.3 Section A.1.4, Table A.1-1 COMPOSITE INFORMATION
OBJECT MODULES OVERVIEW – RADIOTHERAPY
IODs
Modules
Object
Evaluation
Results
Patient
M
Clinical Trial Subject
U
General Study
M
Patient Study
U
Clinical Trial Study
U
General Series
M
Clinical Trial Series
U
RT Series
General Equipment
M
Approval
U
Common Instance
Reference
M
SOP Common
M
Object Evaluation
Results
M
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In PS3.3 add the following IOD to Annex A:
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A.X OBJECT EVALUATION RESULTS OBJECT DEFINITION
A.X.1
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This IOD represents the results from an evaluation of the content of a SOP Instance .
A.X.2
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Object Evaluation Results IOD Description
Object Evaluation Results IOD Entity-Relationship Model
The E-R model for this IOD is illustrated in Figure A.X-1.
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Figure A.X-1. DICOM Object Evaluation Results IOD Information Model
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A.X.3
Object Evaluation Results IOD Module Table
Table A.X.3-1. Object Evaluation Results IOD Modules
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IE
Module
Patient
Study
Series
Equipment
Reference
Usage
Patient
C.7.1.1
M
Clinical Trial Subject
C.7.1.3
U
General Study
C.7.2.1
M
Patient Study
C.7.2.2
U
Clinical Trial Study
C.7.2.3
U
GeneralSeries
C.7.3.1
M
Clinical Trial Series
C.7.3.2
U
General Equipment
C.7.5.1
M
C.8.8.x
M
C.8.8.16
U
SOP Common
C.12.1
M
Common Instance
Reference
C.12.2
M
Object Evaluation Object Evaluation Results
Results
Approval
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The value of Modality (0008,0060) shall be ((TBD)).
In PS3.3 add the following Module to Annex C:
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C.8.8.x
Object Evaluation Results Module
This Module describes the results of the evaluation of an Object.
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Table C.8.8.x-1 Object Evaluation Results Module Attributes
Attribute Name
MajorIssues Found
Tag
Type
(gggg,ee01)
1
Attribute Description
Issues were found that indicate the
Evaluated Object has major quality or
effecitveness concerns.
If at least one Item in the Evaluation
Findings Sequence (gggg,ee07) has
Concern Level (gggg,ee08) equal to
MAJOR, then this value shall be YES.
Enumerated Values:
YES
NO
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Attribute Name
Tag
Type
Attribute Description
Evaluation DateTime
(gggg,ee02)
1
Date and time that the evaluation was
performed.
Evaluation Description
(gggg,ee03)
1
Description of the evaluation result.
Evaluation Type
(gggg,ee21)
1
Type of Evaluation that was performed.
>Include Table 8.8-1 ‘Code Sequence Macro Attributes’
Baseline CID YYY4.
Evaluator Result Key
(gggg,ee16)
3
Result key issued by the evaluator to
allow additional information to be
reviewed.
Evaluation Requester Sequence
(gggg,ee17)
1
Identification of the device that made the
evaluation request.
Only a single item shall be included in
this Sequence.
>Operator’s Name
(0008,1070)
1
Name(s) of the operator(s) of the
contributing equipment.
>Operator Identification Sequence (0008,1072)
2
Identification of the operator(s) of the
equipment that made the request.
One or more items are permitted in this
sequence.
The number and order of items shall
correspond to the number and order of
vlaues of the Operators’ Name
(0008,1070) if present.
>>Include Table 10-1 ‘Person Identification Macro Attributes Description Attributes’
>Requester Equipment Sequence
(gggg,ee20)
2
Equipment that made the evaluation
request. Required if information is
supplied.
Only a single Item shall be included in
this Sequence.
>>Requester AE Title
(gggg,ee15)
2
The AE Title of the Evaluation Requester
having requested the generation of this
document.
>>Manufacturer
(0008,0070)
2
Manufacturer of the equipment that
contributed to the composite instance.
>>Institution Name
(0008,0080)
2
Instituion where the equipment that
requested the evaluation is located.
>>Station Name
(0008,1010)
3
User defined name identifying the
machine that made the request.
>>Institutional Department Name
(0008,1040)
3
Department in the institution where the
equipment is located.
>>Manufacturer’s Model Name
(0008,1090)
2
Manufacturer’s model name of the
equipment.
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Attribute Name
Tag
Type
Attribute Description
>>Device Serial Number
(0018,1000)
2
Manufacturer’s serial number of the
equipment
Evaluated Object Sequence
(gggg,ee04)
1
Reference to the object that was
supplied for evaluation
Only a single Item shall be included in
this Sequence.
>Include Table 10-11 ‘SOP Instance Reference Macro
Attributes’
>Reference Object Sequence
(gggg,ee05)
1C
Reference object used by the evaluator
to compare to the Evaluated Object
Required if the evaluator used
persistent data to compare to the
Evaluated Object.
Only a single item shall be included in
this sequence.
>>Include Table 10-11 SOP Instance Reference Macro
Attributes’
Number of Evaluation Findings
(gggg,ee06)
1
Number of findings from the evaluation.
If one or more items in the Evaluation
Findings Sequence (gggg,ee07) have
the value MAJOR in Level Of Concern
(ggg,ee08), the value shall be greater
than zero.
Evaluation Findings Sequence
(gggg,ee07)
1C
Findings of the evaluation.
Required if Number of Evaluation
Findings (gggg,ee06)is non-zero.
The number of Items included in the
sequence shall equal the value of
Number of Evaluation Findings
(gggg,ee06).
>Level Of Concern
(gggg,ee08)
1
Indicates the level of concern regarding
the quality or effectiveness of the
Evaluated Object. of this finding.
Enumerated Values:
MAJOR
indicates a high level of concern.
MINOR
indicates a moderate level of
concern.
NONE
indicates the reporting of a
finding that was consistent with
the evaluation expectations.
>Finding Description
(gggg,ee0A)
1
Description of the evaluation.
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Attribute Name
>Assessment Type Code
Sequence
Tag
Type
(gggg,ee0B)
1
Attribute Description
Code for assessment issued by the
Object Evaluator.
Only a single Item shall be included in
this Sequence.
>>Include Table 8.8-1 ‘Code Sequence Macro Attributes’
Defined CIDs:
CID YYY1 Object Evaluation Numeric
Types
or
CID YYY2 Object Evaluation Text
Reporting Types
or
CID YYY3 Object Evaluation NonSpecific Reporting Types
>Numeric Assessment Sequence
(gggg,ee0C)
1C
Assessment of a numeric value.
Required if Assessment Type Code
Sequence (gggg,ee0B) contains a code
from CID (YYY1) Assessment Numeric
Reporting Types.
Only a single Item shall be included in
this sequence.
>>Include Table 10-20 ‘Selector Attribute Macro Attributes’
>>Selector Attribute Name
(gggg,ee18)
1
Name of the Selector Attribute
(0072,0026). For standard data
elements, this shall be the value of the
Name column of PS3.6 Table 6-1.
>>Selector Attribute Keyword
(gggg,ee19)
1
Keyword of the Selector Attribute
(0072,0026). For standard data
elements, this shall be the value of the
Keyword column of PS3.6 Table 6-1.
>>Selector Attribute VR
(0072,0050)
1
The Value Representation of Selector
Attribute (0072,0026). See PS3.5 for
Enumerated Values of Value
Representation.
>>Expected Upper Bound Value
Sequence
(gggg,ee0D)
1C
Upper bound value of expected value of
check.
Required if Assessment Type Code
Sequence (gggg,ee0B) contains a code
of (XYZ002, DCM, ”Upper Bound”),
(XYZ004, DCM, ”Range”), or (XYZ005,
DCM, ”Numeric Equality”).
Only a single item shall be included in
this sequence.
>>>Include Table C.23.4-2 ‘Hanging Protocol Selector
Attribute Value Macro Attributes’
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Attribute Name
>>Expected Lower Bound Value
Sequence
Tag
Type
Attribute Description
(gggg,ee0E)
1C
Lower bound value of expected value of
check.
Required if Assessment Type Code
Sequence (gggg,ee0B) contains a code
of (XYZ003, DCM, “Lower Bound”) or
(XYZ004, DCM, “Range”).
Only a single item shall be included in
this sequence.
>>>Include Table C.23.4-2 ‘Hanging Protocol Selector
Attribute Value Macro Attributes’
>>Supplied Attribute Value
Sequence
(gggg,ee10)
1
The value that was received.
Only a single item shall be included in
this sequence.
>>>Include Table C.23.4-2 ‘Hanging Protocol Selector
Attribute Value Macro Attributes’
>>Measurement Units Code
Sequence
(0040,08EA)
1
Units of measurement for a numeric
value in this name-value Item.
Only a single Item shall be included in
this Sequence.
>>>Include Table 8.8-1 ‘Code Sequence Macro Attributes’ Baseline CID 82 .
>Text Assessment Sequence
(gggg,ee11)
1C
Assessment of a non-numeric value.
Required if Assessment Type Code
Sequence (gggg,ee0B) contains a code
of CID YYY2
Only a single Item shall be included in
this sequence.
>>Include Table 10-20 ‘Selector Attribute Macro Attributes’
>>Selector Attribute Name
(gggg,ee18)
1
Name of the Selector Attribute
(0072,0026). For standard data
elements, this shall be the value of the
Name column of PS3.6 Table 6-1.
>>Selector Attribute Keyword
(gggg,ee19)
1
Keyword of the Selector Attribute
(0072,0026). For standard data
elements, this shall be the value of the
Keyword column of PS3.6 Table 6-1.
>>Selector Attribute VR
(0072,0050)
1
The Value Representation of Selector
Attribute (0072,0026). See PS3.5 for
Enumerated Values of Value
Representation.
>>Expected Value Sequence
(gggg,ee12)
1
Expected value of assessment
Only a single item shall be included in
this sequence.
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Attribute Name
Tag
Type
Attribute Description
>>>Include Table C.23.4-2 ‘Hanging Protocol Selector
Attribute Value Macro Attributes’
>>Supplied Attribute Value
Sequence
(gggg,ee10)
1
The value that was assessed in the
Evaluated Object..
Only a single item shall be included in
this sequence.
>>>Include Table C.23.4-2 ‘Hanging Protocol Selector
Attribute Value Macro Attributes’
>Non-Specific Assessment
Sequence
(gggg,ee13)
1C
Anssessment whose result cannot be
expressed as a numeric or textual
comparison..
Required if Assessment Type Code
Sequence (gggg,ee0B) contains a code
of CID YYY3
Only a single Item shall be included in
this Sequence.
>>Non-Specific
AssessmentDescription
(gggg,ee14)
2
1
Description detailing the nature of the
assessment.
Part 4 Addendum
Add the following to PS3.4, Appendix B.5, Table B.5-1
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Table B.5-1. Standard SOP Classes
SOP Class Name
Object Evaluation Results
Storage
SOP Class UID
1.2.840.10008.5.1.4.1.1.xx.y.z
IOD Specification (defined in
PS3.3)
Object Evaluation Results IOD
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Add the following to PS3.4, Table I.4-18
Table I.4-1. Media Storage Standard SOP Classes
SOP Class Name
SOP Class UID
IOD Specification (defined in
PS3.3)
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SOP Class Name
Object Evaluation Results
Storage
SOP Class UID
IOD Specification (defined in
PS3.3)
1.2.840.10008.5.1.4.1.1.xx.y.z
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Object Evaluation Results IOD
Part 6 Addendum
To PS3.6, add the following Data Elements:
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Table 6-1. Registry of DICOM Data Elements
Tag
Name
Keyword
VR
VM
(gggg,ee01)
Critical Issues Found
CriticalIssuesFound
CS
1
(gggg,ee02)
Evaluation DateTime
EvaluationDateTime
DT
1
(gggg,ee03)
Evaluation Description
EvaluationDescription
UT
1
(gggg,ee04)
Evaluated RT Object Sequence
EvaluatedRTObjectSequence
SQ
1
(gggg,ee05)
Reference Object Sequence
ReferenceObjectSequence
SQ
1
(gggg,ee06)
Number of Evaluation Findings
NumberOfEvaluationFindings
UL
1
(gggg,ee07)
Evaluation Findings Sequence
EvaluationFindingsSequence
SQ
1
(gggg,ee08)
Level Of Concern
LevelOfConcern
CS
1
(gggg,ee0A)
Finding Description
FindingDescription
LO
1
(gggg,ee0B)
Assessment Type Code Sequence
AssessmentTypeCodeSequen
ce
SQ
1
(gggg,ee0C) Numeric Assessment Sequence
NumericAssessmentSequence SQ
1
(gggg,ee0D) Expected Upper Bound Value
Sequence
ExpectedUpperBoundValueSe
quence
SQ
1
(gggg,ee0E)
Expected Lower Bound Value
Sequence
ExpectedLowerBoundValueSe
quence
SQ
1
(gggg,ee10)
Supplied Attribute Value Sequence
SuppliedAttributeValueSequen
ce
SQ
1
(gggg,ee11)
Text Assessment Sequence
TextAssessmentSequence
SQ
1
(gggg,ee12)
Expected Value Sequence
ExpectedValueSequence
SQ
1
(gggg,ee13)
Non-Specific Assessment Sequence
NonSpecificAssessmentSeque SQ
1
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Tag
Name
Keyword
VR
VM
nce
(gggg,ee14)
Non-Specific Check Description
NonSpecificCheckDescription
UT
1
(gggg,ee15)
Requester AE Title
RequesterAETitle
AE
1
(ggg,ee16)
Evaluator Result Key
EvaluatorResultKey
LO
1
(gggg,ee17)
Evaluation Requester Sequence
EvaluationRequesterSequence SQ
1
(gggg,ee18)
Selector Attribute Name
SelectorAttributeName
LO
1
(gggg,ee19)
Selector Attribute Keyword
SelectorAttributeKeyword
LO
1
(gggg,ee20)
Requester Equipment Sequence
ReguesterEquipmentSequenc
e
SQ
1
(gggg,ee21)
Evaluation Type
EvaluationType
CS
1
2
Add the following to PS3.6 Annex A:
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ANNEX A
REGISTRY OF DICOM UNIQUE IDENTIFIERS (UID) (NORMATIVE)
1.2.840.10008.5.1.4.1.1.xx.y.z
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Object Evaluation Results
Storage
SOP Class
PS 3.4
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Part 16 Addendum
In PS3.16, Annex D, table DICOM Code Definitions, add the following rows:
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Code
Value
6
Definition
XYZ002
Upper Bound
Assessment
An assessment that a value does
not exceed an expected maximum
value.
XYZ003
Lower Bound
Assessment
An assessment that a value is not
less than an expected minimum
value
XYZ004
Range Assessment
An assessment a value falls within
an expected range.
XYZ005
Numeric Equality
Assessment
An assessment that a value equals
an expected numeric value.
XYZ006
Equality Assessment
An assessment that a value equals
an expected value.
XYZ007
Non-Specific
Assessment
An assessment that is not
categorizable under either a
numeric range, lower or upper
comparison, or a value comparison.
For example, this would apply to an
assessment that requires a value
be in a certain set of values
XYZ008
Attribute Consistency
Assessment
An assessment that a value is
consistent with other attribute
values.
XYZ009
RT Pre-Treatment
Dose Check
An evaluation performed before
treatment to check for safe dose
delivery.
XYZ010
RT Pre-Treatment
Consistency Check
A pre-treatment comparison with a
previously quality-assured treatment
plan.
In PS3.16, add the following row to Context ID 7445:
CID 7445
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Code Meaning
DEVICE PARTICIPATING ROLES
Context ID 7445
Notes
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Device Participating Roles
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Type: Extensible
Coding Scheme
Designator
Version: 20110110
Code Value
Code Meaning
(0008,0100)
(0008,0104)
(0008,0102)
DCM
XYZ001
Object Evaluator
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In PS3.16 add the following CID tables to Annex B:
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CID YYY1
OBJECT EVALUATION NUMERIC REPORTING TYPES
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Context ID YYY1
Object Evaluation Numeric Reporting Types
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Type: Extensible
Version: yyyymmdd
Coding Scheme
Designator
(0008,0102)
Code Value
Code Meaning
(0008,0100)
(0008,0104)
DCM
XYZ002
Upper Bound Assessment
DCM
XYZ003
Lower Bound Assessment
DCM
XYZ004
Range Assessment
DCM
XYZ005
Numeric Equality Assessment
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CID YYY2
OBJECT EVALUATION TEXT REPORTING TYPES
14
Context ID YYY2
Object Evaluation Text Reporting Types
16
Type: Extensible
Version: yyyymmdd
Coding Scheme
Designator
(0008,0102)
Code Value
Code Meaning
(0008,0100)
(0008,0104)
DCM
XYZ006
Equality Assessment
DCM
XYZ008
Attribute Consistency Assessment
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CID YYY3
20
OBJECT EVALUATION NON-SPECIFIC REPORTING TYPES
Context ID YYY3
Object Evaluation Non-Specific Reporting Types
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Type: Extensible
Version: yyyymmdd
2
Coding Scheme
Designator
(0008,0102)
Code Value
Code Meaning
(0008,0100)
(0008,0104)
DCM
XYZ007
Non-Specific Assessment
4
CID YYY4
OBJECT EVALUATION TYPE
6
Context ID YYY4
Object Evaluation Type
8
10
Type: Extensible
Version: yyyymmdd
Coding Scheme
Designator
(0008,0102)
Code Value
Code Meaning
(0008,0100)
(0008,0104)
DCM
XYZ009
RT Pre-Treatment Dose Check
DCM
XYZ010
RT Pre-Treatment Consistency Check