MOSAIQ User's Guide - UCSF Radiation Oncology

MOSAIQ User’s Guide
6. Right-click in the Image Registration window. Use the Rotation, Translation, or Scaling
options to match the verification image field edges with the reference image field
aperture.
7. Alternatively, click Match to automatically match (register) a field aperture on the
reference image with the field edge on the verification image. The Match button is
available when the Field Edge radio button is selected and the reference image has an
imported field aperture curve.
8. Click OK after you align the field edge on the verification image with the aperture on the
reference image. The red crosshairs show the verification image isocenter.
Displaying Treatment Geometry on the Image
Once you have associated the image with the correct treatment field and reticle scaled the
image, you can display the treatment geometry of the associated field overlaid on the image
in the Image window. This option is not available for reference images that have no scaling
information or are not associated with a treatment field.
You must have the Image Underlay option enabled to link the
treatment geometry with the reference image. Refer to Enabling
Imaging Options in System Utilities on page 139.
1. Click a reference image that has been associated with a treatment field, then click Open
to open the image in the Image window.
CAUTION
The Geometry and Use for Tx Definition options are NOT enabled
until you have enabled the Image Underlay option in the system
utilities, associated the image with a field, and reticle scaled the
image. If you have already done the latter and the Geometry and
Use for Tx Definition options are disabled, contact your system
administrator to check the machine characterization of the
machine selected for the associated treatment field.
2. Click the Geometry check box in the View group of the Image window.
Following are the conventions for the treatment geometry in the Image window:
Red The isocenter crosshair (reticle)
Turquoise The jaw
Yellow The field shape
Green The MLC leaves
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LUGMSQ0002/4.0/23-Sep-2010