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Lesson: Lung Module
Next, we will auto shape** a beam around the CTV and select a gantry angle that will be off cord. Note: I most cases it is best to keep these angles as close to AP/PA as possible to stay off as much virgin lung as possible. Here we have selected an angle of 26 degrees. ** Remember that our original directives were a 1.5cm margin for the initial plan and boost!
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