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Page 1626​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

 

Attribute Description​

Attribute Tolerance Values​

(300A,062B)​

2​

Tolerance values representing the allowed difference between the​

Sequence​

 

 

planned and actual values.​

 

 

 

The Selector Attribute Macro identifies the Attributes for which the​

 

 

 

tolerances are specified.​

 

 

 

Required if a tolerance value is specified for at least one Attribute which​

 

 

 

can be referenced by the Selector Attribute Macro.​

 

 

 

See Section C.36.2.2.17.1.1.​

 

 

 

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

>Include Table 10-20 “Selector Attribute Macro Attributes”.​

 

>Tolerance Value​

(300A,062C)​

1​

Maximum permitted difference between the planned and the delivered​

 

 

 

value.UnitsarethosespecifiedforthecorrespondingAttributereferenced​

 

 

 

by the Selector Attribute Macro.​

Patient Support Position​

(300A,065C)​

1​

Method of specification for patient support parameters.​

Specification Method​

 

 

Enumerated Values:​

 

 

 

 

 

 

ABSENT​

No parameters are specified.​

 

 

 

GLOBAL​

Parameters are specified irrespective of the​

 

 

 

 

devices in use.​

 

 

 

DEVICE_SPECIFIC​Parameters are specified per device.​

Patient Support Position​

(300A,0660)​

1C​

Tolerance values for Patient Support devices.​

DeviceToleranceSequence​

 

 

Required if Patient Support Position Specification Method (300A,065C)​

 

 

 

 

 

 

does not equal ABSENT.​

 

 

 

One or more Items shall be included in this Sequence if Patient Support​

 

 

 

PositionSpecificationMethod(300A,065C)equalsDEVICE_SPECIFIC.​

 

 

 

Only one Item shall be included in this Sequence if Patient Support​

 

 

 

Position Specification Method (300A,065C) equals GLOBAL.​

 

 

 

See Section C.36.2.2.17.1.2.​

>Referenced Device Index​

(300A,0607)​

1C​

The value of Device Index (3010,0039) in Patient Support Devices​

 

 

 

Sequence (300A,0686) corresponding to the Patient Support Device in​

 

 

 

use.​

 

 

 

 

Required if Patient Support Position Specification Method (300A,065C)​

 

 

 

equals DEVICE_SPECIFIC.​

>Device Order Index​

(300A,065E)​

1C​

IndexdefiningtheorderinwhichtheItemsinthePatientSupportPosition​

 

 

 

Device Tolerance Sequence (300A,0660) are applied.​

 

 

 

The value shall start at 1 and increase monotonically by 1.​

 

 

 

Required if Patient Support Position Specification Method (300A,065C)​

 

 

 

equals DEVICE_SPECIFIC.​

 

 

 

See Section 10.40.1.​

>Patient Support Position​

(300A,062D)​

1​

Tolerance values for a particular Patient Support device.​

Tolerance Sequence​

 

 

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

 

 

 

- Standard -​

 

DICOM PS3.3 2020a - Information Object Definitions​

Page 1627​

Attribute Name​

Tag​

Type​

Attribute Description​

 

>>Patient Support Position​

(300A,0661)​

1C​

IndexdefiningtheorderinwhichtheItemsinthePatientSupportPosition​

Tolerance Order Index​

 

 

Tolerance Sequence (300A,062D) are applied.​

 

 

 

 

The value shall start at 1 and increase monotonically by 1.​

 

 

 

Required if Patient Support Position Specification Method (300A,065C)​

 

 

 

equals DEVICE_SPECIFIC.​

 

 

 

 

See Section 10.40.1.​

 

>>Include Table 10-2 “Content Item Macro Attributes​

BTID 15302 “Patient Support Position Parameters”.​

 

Description”.​

 

 

Content items shall use UCUM units of mm and degrees where​

 

 

 

 

 

 

applicable.​

 

C.36.2.2.17.1 RT Tolerance Set Attribute Description​

C.36.2.2.17.1.1 Attribute Tolerance Values Sequence​

The Attribute Tolerance Values Sequence (300A,062B) allows for the reference to any numerical parameter in an RT Radiation IOD.​ The RT Tolerance Set Macro is invoked to specify a tolerance value for this parameter. The reference specification is conveyed by​ the Selector Attribute Macro, which allows reference to a tag on any level of nested Sequences, and to refer to specific Items in the​ Sequence. The unit of the tolerance value is the unit as specified by the data element tag referenced in the Selector Attribute​ (0072,0026).​

C.36.2.2.17.1.2 Patient Support Position Tolerance Sequence​

When describing a tolerance for a specific patient support position value, the patient support device parameter is defined using the​ same code used in the Patient Support Position Macro in Section 10.40.​

C.36.3 Enhanced RT Series Module​

The RT Second Generation IODs use the General Series Module described in Section C.7.3.1, specialized by the Enhanced RT​ Series Module.​

Table C.36.3-1 specifies the Attributes that identify and describe general information about the Enhanced RT Series.​

Table C.36.3-1. Enhanced RT Series Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Modality​

(0008,0060)​

1​

Type of equipment that originally acquired the data used to create​

 

 

 

the Instances in this Series.​

 

 

 

See Section C.36.3.1.1.​

Series Number​

(0020,0011)​

1​

A number that identifies this series.​

Series Date​

(0008,0021)​

1​

Date the Series started.​

Series Time​

(0008,0031)​

1​

Time the Series started.​

- Standard -​

Page 1628​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

Referenced Performed​

(0008,1111)​

1C​

Uniquely identifies the Performed Procedure Step SOP Instance​

ProcedureStepSequence​

 

 

that resulted in creation of the Series (e.g. a Modality or Unified​

 

 

 

Procedure Step SOP Instance).​

Only a single Item shall be included in this Sequence.​

Required if the series has been created as a result of a single​ procedure step request and the Instance-Level Referenced​ Performed Procedure Step Sequence (3010,0044) is not present.​

If different instances Instances in the series are created as a result​ of a procedure step, the Instance-Level Referenced Performed​ Procedure Step Sequence (3010,0044) in the Radiotherapy​ Common Instance Module shall be used.​

>IncludeTable10-11“SOPInstanceReferenceMacroAttributes”​

C.36.3.1 Enhanced RT Series Attribute Descriptions​

C.36.3.1.1 Modality​

The Modality (0008,0060) is defined for each IOD including the Enhanced RT Series Module.​

Enumerated Values:​

RTINTENT​

RTRAD​

RTSEGANN​

C.36.4 Radiotherapy Common Instance Module​

Table C.36.4-1 specifies the Attributes that identify and describe general information in RT Second Generation IODs.​

Table C.36.4-1. Radiotherapy Common Instance Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Instance Creation Date​

(0008,0012)​

1​

Date the SOP Instance was created.​

Instance Creation Time​

(0008,0013)​

1​

Time the SOP Instance was created.​

Content Date​

(0008,0023)​

1​

The date the content creation started.​

Content Time​

(0008,0033)​

1​

The time the content creation started.​

Author Identification Sequence​

(3010,0019)​

2​

The person that created the entire clinical content of this​

 

 

 

document.​

 

 

 

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

>Include Table C.17-3b.​

 

 

Context Group may be defined in the Macro invocation.​

 

 

 

The Observer Type (0040,A084) shall be PSN.​

Instance-Level Referenced​

(3010,0044)​

1C​

Uniquely identifies the Performed Procedure Step SOP​

Performed Procedure Step​

 

 

Instance that resulted in creation of this Instance (e.g. a​

Sequence​

 

 

Modality or Unified Procedure Step SOP Instance).​

Required if this Instance has been created as a result of a​ procedure step request and the Referenced Performed​ Procedure Step Sequence (0008,1111) is not present.​

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

>Include Table 10-11 “SOP Instance Reference Macro Attributes”​

- Standard -​

DICOM PS3.3 2020a - Information Object Definitions​

Page 1629​

C.36.5 RT Physician Intent Module​

The RT Physician Intent Module contains information about the overall intent of the treatment. The content is mostly descriptive text​ and allows for the presence of unstructured advice by the physician along the established nomenclature of the actual institution.​

Table C.36.5-1. RT Physician Intent Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Include Table 10.9.2-1 “Extended Content Identification Macro Attributes”​

 

RT Treatment Phase Intent​

(3010,0045)​

1​

Whether an RT Treatment Phase Intent definition is​

Presence Flag​

 

 

present.​

 

 

 

Enumerated Values:​

 

 

 

YES​

 

 

 

NO​

RT Physician Intent Sequence​

(3010,0057)​

1​

The overall goals or aims intended by the physician,​

 

 

 

for the Radiotherapy.​

 

 

 

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

 

 

 

See Section C.36.5.1.1.​

>RT Physician Intent Index​

(3010,0058)​

1​

Index of the RT Physician Intent in the Sequence.​

 

 

 

The value shall start at 1 and increase monotonically​

 

 

 

by 1.​

>Treatment Site​

(3010,0077)​

1​

A free-text label describing the anatomical treatment​

 

 

 

site.​

>TreatmentSiteCodeSequence​

(3010,0078)​

2​

Coded description of the treatment site.​

 

 

 

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

>>Include Table 8.8-1 “Code Sequence Macro Attributes”​

 

No Baseline CID is defined.​

>>Treatment Site Modifier Code​

(3010,0078)​

3​

Coded description of the treatment site.​

Sequence​

 

 

One or more Items are permitted in this Sequence.​

 

 

 

>>>Include Table 8.8-1 “Code Sequence Macro Attributes”​

 

DCID 2 “Anatomic Modifier”​

>RT Physician Intent Narrative​

(3010,005A)​

2​

Narrative of RT Physician Intent.​

>RT Treatment Intent Type​

(3010,0059)​

2​

Type of treatment intent.​

 

 

 

Defined Terms:​

 

 

 

CURATIVE​

 

 

 

PALLIATIVE​

 

 

 

PROPHYLACTIC​

>RT Physician Intent​

(3010,0055)​

1C​

Reference to the RT Physician Intent SOP Instance​

Predecessor Sequence​

 

 

which was replaced by this RT Physician Intent.​

 

 

 

RequiredifthisRTPhysicianIntentreplacesaprevious​

 

 

 

version.​

 

 

 

Only a single Item shall be included in this Sequence.​

>>Include Table 10-11 “SOP Instance Reference Macro Attributes”​

 

>>Reason for Superseding​

(3010,005C)​

2​

Reason that the previous RT Physician Intent was​

 

 

 

superseded by this RT Physician Intent.​

- Standard -​

Page 1630​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

>RT Treatment Approach Label​

(3010,0056)​

2​

Characterization of the case and intended treatment​

 

 

 

approach.​

 

 

 

See Section C.36.5.1.4.​

>RT Protocol Code Sequence​

(3010,005B)​

2​

The protocol(s) selected by the RT Physician.​

 

 

 

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

 

 

 

See Section C.36.5.1.2.​

>>Include Table 8.8-1 “Code Sequence Macro Attributes”​

 

No Baseline CID is defined.​

>RT Diagnosis Code Sequence​

(3010,005D)​

2​

Diagnosis codes to describe the condition handled by​

 

 

 

this RT Physician Intent.​

 

 

 

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

>>Include Table 8.8-1 “Code Sequence Macro Attributes”​

 

No Baseline CID is defined.​

>RT Physician Intent Input​

(3010,005F)​

2​

References to SOP Instances used to establish the RT​

Instance Sequence​

 

 

Physician Intent.​

 

 

 

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

 

 

 

See Section C.36.5.1.3.​

>>Include Table 10.37-1 “Related Information Entities Macro Attributes”​

DCID 9509 “Purpose of Reference For RT Physician​

 

 

 

Intent Input”.​

C.36.5.1 RT Physician Intent Attribute Descriptions​

C.36.5.1.1 RT Physician Intent Sequence​

The RT Physician Intent Sequence (3010,0057) allows one or more clinical intents to be identified for treatment in a treatment course.​ For example, the simultaneous treatment of multiple primary targets may require separate intents to be defined, each with its own​ prescription(s) and having different sets of reference imaging studies.​

C.36.5.1.2 RT Protocol Code Sequence​

RT Protocol Code Sequence (3010,005B) contains a coded description of the radiotherapy clinical protocol being followed for the​ patient. This is not necessarily the same as the Procedure Step protocol.​

C.36.5.1.3 RT Physician Intent Input Instance Sequence​

The purpose of this Sequence is to reference all the Instances that have been used by the RT Physician to establish the Intent. It​ may include the Images that were used in the treatment planning process, which are also referenced in the Planning Input Information​ Sequence (3010,0076) of the RT Enhanced Prescription Module.​

When there are multiple Purposes of References, one Item will be included for each purpose.​

C.36.5.1.4 RT Treatment Approach Label​

The RT Treatment Approach Label (3010,0056) is a short human-readable text label that is meaningful in the context of the patient's​ disease and the treatment site. Such labels may be found in the literature, or defined as local departmental naming conventions. They​ are usually not standardized. Examples are terms like Conformal, Conical_Arc, Conformal_Arc, Electron Boost for Breast, TBI, TMI,​ TSE, CSI, IMAT_VMAT, Total_Spine.​

C.36.6 RT Enhanced Prescription Module​

The RT Enhanced Prescription Module describes the delivery objectives and labels for intended treatment for a specific target, as​ defined by the physician.​

- Standard -​

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