10.12 Patient Orientation Macro
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## 10.12 Patient Orientation Macro

This section describes attributes of the Patient Orientation Macro by specifying the patient orientation related to gravity and equipment. Table 10-15 contains IOD Attributes that describe the Patient Orientation related to gravity and equipment.

Table 10-15. Patient Orientation Macro Attributes

Attribute Name | Tag | Type | Attribute Description
--- | --- | --- | ---
Patient Orientation Code Sequence | (0054,0410) | 1 | Sequence that describes the orientation of the patient with respect to gravity. See Section C.8.11.5.1.2 for further explanation. Only a single Item shall be included in this Sequence.
>Include Table 8.8-1 “Code Sequence Macro Attributes” . | Baseline CID 19 “Patient Orientation”.
>Patient Orientation Modifier Code Sequence | (0054,0412) | 1C | Patient orientation modifier. Required if needed to fully specify the orientation of the patient with respect to gravity. Only a single Item shall be included in this Sequence.
>>Include Table 8.8-1 “Code Sequence Macro Attributes” | Baseline CID 20 “Patient Orientation Modifier”.
Patient Gantry Relationship Code Sequence | (0054,0414) | 3 | Sequence that describes the orientation of the patient with respect to the head of the table. See Section C.8.4.6.1.3 for further explanation. Only a single Item is permitted in this Sequence.
>Include Table 8.8-1 “Code Sequence Macro Attributes” . | Baseline CID 21 “Patient Equipment Relationship”.

### 10.12.1 Relation With Other Positioning Attributes

The attributes of this macro may be used to correlate the patient based coordinate system (see Section C.7.6.2) and the equipment.

### Note

The Patient Orientation Code Sequence (0054,0410) allows a more precise and comprehensive positioning than Patient Position (0018,5100). If this sequence is present Patient Position (0018,5100) is not used.

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