Images with modality SC or VL serve as visible light photos for visual setup control. Images with modality RTIMAGE serve as reference images on plan level. RT Images present in this sequence shall not be referenced in the Referenced Reference Image Sequence (300C,0042) of the RT Beams module.
Defined Terms for Patient Position shall be those specified in Section C.18.104.22.168.2, plus the following:
In the sitting position, the patient’s face is towards the front of the chair.