MOSAIQ User's Guide - UCSF Radiation Oncology

CHAPTER 7: Image Management-ViewStation & Photos and Diagrams
3. Click adjacent to the Patient Orientation field, then click the applicable patient
orientation setting.
Figure 36 shows the drop list of patient orientation settings in the system.
Figure 36: Patient Orientation Settings
For safety purposes, there is no default patient orientation.
Configuring Treatment Field Definition Data
Before using Image Registration, you must enter the gantry and couch angles in the
Treatment Field Definition dialog box
With regard to the gantry angle, 2D Image Registration is only available for images at
cardinal angles. Cardinal angles are 0°, 90°, 180°, and 270°.
With regard to the couch angle, the couch must be perpendicular to the gantry. This angle
will be either 0.0° or 180° depending on your machine characterization.
Figure 37 shows the Gantry/Collimator and Couch sections in the Treatment Field Definition
dialog boxes.
Figure 37: Gantry and Couch Angles in the Treatment Field Definition
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