DICOM PS3.3 2021d - Information Object Definitions

C.36.2.2.3 RT Accessory Device Identification Macro (Current)
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##### C.36.2.2.3 RT Accessory Device Identification Macro

The RT Accessory Device Identification Macro identifies an RT accessory device and its location.

Table C.36.2.2.3-1. RT Accessory Device Identification Macro Attributes

Attribute Name | Tag | Type | Attribute Description
--- | --- | --- | ---
Include Table 10.35-1 “Device Model Macro Attributes”.
Include Table 10.36-1 “Device Identification Macro Attributes”. | CID is specified at invocation.
RT Accessory Device Slot ID | (300A,0615) | 2C | Identifier of the RT Accessory Device Slot where this RT Accessory Device is inserted. Required if Referenced RT Accessory Holder Device Index (300A,060E) is not present. See Section C.36.2.2.3.1.
RT Accessory Slot Distance | (300A,0613) | 2C | Distance in mm from the reference location as specified by RT Device Distance Reference Location Code Sequence (300A,0659) to the RT Accessory Device Slot. Required if RT Accessory Device Slot ID (300A,0615) is present and has a value.
Referenced RT Accessory Holder Device Index | (300A,060E) | 2C | The value of Device Index (3010,0039) of the RT Accessory Holder Device in the RT Accessory Holder Definition Sequence (300A,0614). Required if RT Accessory Device Slot ID (300A,0615) is not present. See Section C.36.2.2.3.1.
RT Accessory Holder Slot ID | (300A,0611) | 2C | Identifier of the RT Accessory Holder Slot in the RT Accessory Holding Device where this RT Accessory Device is inserted. Required if Referenced RT Accessory Holder Device Index (300A,060E) is present and has a value and the referenced RT Accessory Holder Device contains an RT Accessory Holder Slot Sequence (300A,0610).

###### C.36.2.2.3.1 RT Accessory Device Slot and RT Accessory Holder Slot Description

An RT treatment delivery unit may allow the direct attachment of one or more RT Accessory Devices to the delivery unit in RT Accessory Device Slots, identified by RT Accessory Device Slot ID (300A,0615). Such an RT Accessory Device may be for example any kind of beam limiting device like a wedge tray or an electron applicator.

An RT Accessory Device may be mounted in or on an RT Accessory Holder which is a specific RT Accessory Device. See Section C.36.2.2.14.

If this RT Accessory Holder does not provide slots, the RT Accessory Holder is referred to by Referenced RT Accessory Holder Device Index (300A,060E), for example, a block tray for a block.

If the RT Accessory Holder provides slots these are referred to by Referenced RT Accessory Holder Device Index (300A,060E) and RT Accessory Holder Slot ID (300A,0611), for example, an electron applicator holding a block tray.

Any RT Accessory Device may either be mounted in an RT Accessory Device Slot or on an RT Accessory Device Holder. Thus, for any RT Accessory Device the Referenced RT Accessory Holder Device Index (300A,060E) and RT Accessory Holder Slot ID (300A,0611) are mutually exclusive.

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DICOM PS3.3 2021d - Information Object Definitions