Download Version 4.5 User Manual

Application Menu > CBCT continued
Varian
Using the arrow button on your keyboard, arrow down until you find
the image with the MTF bead and the high contrast bar patterns. If
you hover your cursor over the small thumbnail a larger image will
be shown.
Section 2 - Using PIPSpro
After finding the correct starting slice click on the ‘Auto Select’
button and the CBCT module will automatically choose the correct
slices for analysis.
Click on the ‘Begin Analysis’ button and choose whether you would
like to save the analysis results in either of the databases or if you
prefer a Report Only.
You may see a warning regarding Gantry Tilt angle. This module
was originally designed for CT machines which require this analysis.
Click OK to continue.
Catphan 504 only - The Low contrast module will be shown and
you will be asked to identify which size disk you can visualize in the
image. This is the only subjective portion of the analysis. Simply
type in the size of the disk you can visualize and then Return/Enter.
Elekta
Using the arrow button on your keyboard, arrow down until you find
the image with the CT density plugs and the ramps for the calculation
of the slice thickness shown. Choose the slice that has the ramps at
the ‘12’, ‘3’, ‘6’ and ‘9’ o’clock positions and the four alignment marks
on the border of the phantom
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