C.36.5 RT Physician Intent Module

C.36.5 RT Physician Intent Module (Current)
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Table C.36.5-1 specifies the Attributes of the RT Physician Intent Module, which contain 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 Presence Flag	(3010,0045)	1	Whether an RT Treatment Phase Intent definition is 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.
>Treatment Site Code Sequence	(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”			BCID 4 “Anatomic Region”.
>>Treatment Site Modifier Code Sequence	(3010,0089)	3	Coded description of the laterality of the treatment site. Only a single Item is permitted in this Sequence.
>>>Include Table 8.8-1 “Code Sequence Macro Attributes”			DCID 244 “Laterality”
>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 Predecessor Sequence	(3010,0055)	1C	Reference to the RT Physician Intent SOP Instance which was replaced by this RT Physician Intent. Required if this RT Physician Intent replaces a previous 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Reason for Superseding	(3010,005C)	2	Reason that the previous RT Physician Intent was superseded by this RT Physician Intent.
>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 Instance Sequence	(3010,005F)	2	References to SOP Instances used to establish the RT 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 Module 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.

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