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Page 1426​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

Person Name​

(0040,A123)​

1C​

This is the value of the Content Item.​

Required if Value Type (0040,A040) is PNAME.​

UID​

(0040,A124)​

1C​

This is the value of the Content Item.​

Required if Value Type (0040,A040) is UIDREF.​

Include Table C.18.1-1 “Numeric Measurement Macro Attributes” if and only​ if Value Type (0040,A040) is NUM.​

Include Table C.18.2-1 “Code Macro Attributes” if and only if Value Type​ (0040,A040) is CODE.​

Include Table C.18.3-1 “Composite Object Reference Macro Attributes” if​ and only if Value Type (0040,A040) is COMPOSITE.​

Include Table C.18.4-1 “Image Reference Macro Attributes” if and only if​

Value Type (0040,A040) is IMAGE.​

Include Table C.18.5-1 “Waveform Reference Macro Attributes” if and only​ if Value Type (0040,A040) is WAVEFORM.​

Include Table C.18.6-1 “Spatial Coordinates Macro Attributes” if and only if​

Value Type (0040,A040) is SCOORD.​

IncludeTableC.18.9-1“3DSpatialCoordinatesMacroAttributes”ifandonly​ if Value Type (0040,A040) is SCOORD3D.​

Include Table C.18.7-1 “Temporal Coordinates Macro Attributes” if and only​ if Value Type (0040,A040) is TCOORD.​

IncludeTableC.18.8-1“ContainerMacroAttributes”ifandonlyifValueType​ (0040,A040) is CONTAINER.​

Table C.17-6. Document Relationship Macro Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Observation​

(0040,A032)​

1C​

The date and time on which this Content Item was completed. For the​

DateTime​

 

 

purpose of recording measurements or logging events, completion time​

 

 

 

is defined as the ending time of data acquisition of the measurement,​

 

 

 

or the ending time of occurrence of the event.​

 

 

 

RequiredifthedateandtimearedifferentfromContentDate(0008,0023)​

 

 

 

and Content Time (0008,0033) or Observation DateTime (0040,A032)​

 

 

 

defined in higher Items. May be present otherwise.​

 

 

 

Note​

 

 

 

WhenContentItemsarecopiedintosuccessorreports,Content​

 

 

 

Date (0008,0023) and Content Time (0008,0033) of the new​

 

 

 

report are likely to be different than the date and time of the​

 

 

 

original observation. Therefore this Attribute may need to be​

 

 

 

included in any copied Content Items to satisfy the condition.​

Observation UID​

(0040,A171)​

3​

Unique identifier for the observation Content Item (and its subsidiary​

 

 

 

Content Items, if any). The UID represents the semantic content of the​

 

 

 

observation;anencodingofthesameobservationwiththesamecontext​

 

 

 

into another representation (e.g., a CDA Entry) may use the same UID.​

- Standard -​

 

DICOM PS3.3 2020a - Information Object Definitions​

Page 1427​

Attribute Name​

Tag​

Type​

Attribute Description​

 

Content Sequence​

(0040,A730)​

1C​

ApotentiallyrecursivelynestedSequenceofItemsthatconveyscontent​

 

 

 

that is the Target of Relationships with the enclosing Source Content​

 

 

 

Item.​

 

 

 

 

One or more Items shall be included in this Sequence.​

 

 

 

 

Required if the enclosing Content Item has relationships.​

 

 

 

 

Note​

 

 

 

 

1.​If this Attribute is not present then the enclosing Item is a​

 

 

 

leaf.​

 

 

 

 

2.​The order of Items within this Sequence is semantically​

 

 

 

significant for presentation.​

 

 

 

 

See Section C.17.3.2.4 for further explanation.​

 

>Relationship Type​

(0040,A010)​

1​

The type of relationship between the (enclosing) Source Content Item​

 

 

 

and the Target Content Item.​

 

IODs specify additional constraints on Relationships (including lists of​

Enumerated Values).​

Enumerated Values:​

CONTAINS​

HAS PROPERTIES​

HAS OBS CONTEXT​

HAS ACQ CONTEXT​

INFERRED FROM​

SELECTED FROM​

HAS CONCEPT MOD​

See Section C.17.3.2.4 for further explanation.​

>Include Table C.17-6 “Document Relationship Macro​ Attributes” if the Target Content Item is included by-value in​ the Source Content Item. The Macro shall not be present if​ the relationship is by-reference.​

>IncludeTableC.17-5“DocumentContentMacroAttributes”​ if the Target Content Item is included by-value in the Source​ Content Item. The Macro shall not be present if the​ relationship is by-reference.​

- Standard -​

Page 1428​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

>Referenced Content​

(0040,DB73)​

1C​

AnorderedsetofoneormoreintegersthatuniquelyidentifiestheTarget​

Item Identifier​

 

 

Content Item of the relationship.​

The root Content Item is referenced by a single value of 1.​

Each subsequent integer represents an ordinal position of a Content​ Item in the Content Sequence (0040,A730) in which it belongs. The​ Referenced Content Item Identifier is the set of these ordinal positions​ along the by-value relationship path. The number of values in this​ Multi-Value Attribute is exactly the number of relationships traversed in​ the SR content tree plus one.​

Note​

1.​See Section C.17.3.2.5.​

2.​ContentItemsareorderedinaContentSequencestarting​ from 1 as defined in VR of SQ (see PS3.5).​

Required if the Target Content Item is denoted by-reference, i.e., the​ Document Relationship Macro and Document Content Macro are not​ included.​

C.17.3.1 SR Document Content Tree​

The Module consists of a single root Content Item that is the root of the SR Document tree. The root Content Item is of type CON-​ TAINER, and its Content Sequence conveys either directly or indirectly through further nested Content Sequences, all of the other​ Content Items in the document. This root Content Item shall have a heading in the Concept Name Code Sequence (0040,A043) that​ conveys the title of the SR Document, i.e., the Document Title.​

Figure C.17.3-1 depicts the relationship of SR Documents to Content Items and the relationships of Content Items to other Content​ Items and to Observation Context.​

SR Document

contains

Content Item *

related to

* Note:

A Content Item may contain either Observation Context or other content.

Figure C.17.3-1. SR Information Model​

Note​

Whether or not relationships by-reference are allowed to ancestor Content Items, is specified in the IOD.​

- Standard -​

DICOM PS3.3 2020a - Information Object Definitions​

Page 1429​

Root Content Item

relationship

relationship

relationship

 

 

Content Item

Content Item

Content Item

 

 

 

relationship

relationship

relationship

relationship

 

Content Item

Content Item

Content Item

Content Item

relationship

relationship

relationship

relationship

 

 

Content Item

 

 

Legend: By-value (BV)

By-Reference (BR)

Notes:

The IOD specifies whether or not relationships by-reference are allowed to ancestor

Content Items.

Figure C.17.3-2. Example of an SR Content Tree (Informative)​

C.17.3.2 Content Item Attributes​

Each Content Item contains:​

•​name/value pair, consisting of​

•​a single Concept Name Code Sequence (0040,A043) that is the name of a name/value pair or a heading,​

•​a value (text, codes, etc.),​

•​references to images, waveforms or other composite objects, with or without coordinates,​

•​relationships to other Items, either​

•​by-value through nested Content Sequences, or​

•​by-reference.​

C.17.3.2.1 Content Item Value Type​

The value of the name/value pair is encoded with one of the Value Types defined in Table C.17.3-7 (the choice of which may be​ constrained by the IOD in which this Module is contained). Value Type (0040,A040) explicitly conveys the type of Content Item value​ encoding.​

Table C.17.3-7. Value Type Definitions​

Value Type​

Concept Name​

Concept Value​

Description​

TEXT​

Type of text, e.g., "Findings", or​Textual expression of the​

Free text, narrative description of unlimited length.​

 

name of identifier, e.g., "Lesion​concept​

May also be used to provide a label or identifier​

 

ID"​

 

value.​

NUM​

Type of numeric value or​

Numericvalueandassociated​Numericvaluefullyqualifiedbycodedrepresentation​

 

measurement, e.g., "BPD"​

Unit of Measurement​

ofthemeasurementnameandunitofmeasurement.​

- Standard -​

Page 1430​

DICOM PS3.3 2020a - Information Object Definitions​

Value Type​

Concept Name​

Concept Value​

Description​

CODE​

Type of code, e.g., "Findings"​Coded expression of the​

Categoricalcodedvalue.Representationofnominal​

 

 

concept​

or non-numeric ordinal values.​

DATETIME​

Type of DateTime, e.g.,​

Concatenated date and time​Date and time of occurrence of the type of event​

 

"Date/Time of onset"​

 

denoted by the Concept Name.​

DATE​

Type of Date, e.g., "Birth Date"​Calendar date​

Date of occurrence of the type of event denoted by​

 

 

 

the Concept Name.​

TIME​

Type of Time, e.g "Start Time"​Time of day​

Time of occurrence of the type of event denoted by​

 

 

 

the Concept Name.​

UIDREF​

Type of UID, e.g "Study​

Unique Identifier​

Unique Identifier (UID) of the entity identified by the​

 

Instance UID"​

 

Concept Name.​

PNAME​

Roleofperson,e.g.,"Recording​Name of person​

Person name of the person whose role is described​

 

Observer"​

 

by the Concept Name.​

COMPOSITE​Purpose of Reference​

Reference to UIDs of​

A reference to one Composite SOP Instance that is​

 

 

Composite SOP Instances​

not an Image or Waveform.​

IMAGE​

Purpose of Reference​

Reference to UIDs of Image​ AreferencetooneImage.IMAGEContentItemmay​

 

 

Composite SOP Instances​

conveyareferencetoaSoftcopyPresentationState​

 

 

 

associated with the Image.​

WAVEFORM​ Purpose of Reference​

Reference to UIDs of​

A reference to one Waveform.​

 

 

Waveform Composite SOP​

 

 

 

Instances​

 

SCOORD​

Purpose of Reference​

Listing of spatial coordinates​Spatial coordinates of a geometric region of interest​

 

 

 

intheDICOMimagecoordinatesystem.TheIMAGE​

 

 

 

Content Item from which spatial coordinates are​

 

 

 

selected is denoted by a SELECTED FROM​

 

 

 

relationship.​

SCOORD3D​ Purpose of reference​

Listing of spatial 3D​

3D spatial coordinates (x,y,z) of a geometric region​

 

 

coordinates​

of interest in a Reference Coordinate System.​

TCOORD​

Purpose of Reference​

Listingoftemporalcoordinates​Temporal Coordinates (i.e., time or event-based​

 

 

 

coordinates) of a region of interest in the DICOM​

 

 

 

waveform coordinate system. The WAVEFORM or​

 

 

 

IMAGE or SCOORD Content Item from which​

 

 

 

Temporal Coordinates are selected is denoted by a​

 

 

 

SELECTED FROM relationship.​

CONTAINER​ Document Title or document​

The content of the​

CONTAINER groups Content Items and defines the​

 

sectionheading.ConceptName​CONTAINER. The value of a​heading or category of observation that applies to​

 

conveys the Document Title (if​CONTAINER Content Item is​that content. The heading describes the content of​

 

the CONTAINER is the​

thecollectionofContentItems​the CONTAINER Content Item and may map to a​

 

Document Root Content Item)​that it contains.​

document section heading in a printed or displayed​

 

or the category of observation.​

document.​

Note​

It is recommended that drawings and sketches, sometimes used in reports, be represented by IMAGE Content Items that​ reference separate SOP Instances (e.g., 8-bit, MONOCHROME2, Secondary Capture, or Multi-frame Single Bit Secondary​ Capture).​

C.17.3.2.2 Concept Name Code Sequence​

Concept Name Code Sequence (0040,A043) conveys the name of the concept whose value is expressed by the value attribute or​ set of attributes. Depending on the Value Type (0040,A040), the meaning of the Concept Name Code Sequence may reflect specifics​ of the use of the particular data type (see Table C.17.3-7).​

- Standard -​

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