Lesson: Breast Module

Isodose Evaluation

Another way to evaluate the plan is too look at the overall dose coverage. To do this, we will be looking at the 95% line and evaluating whether or not it is at an acceptable level.

First we will do this in the dose window. For this example below, I have turned off all dose likes except for the 95% line (in white). I have also turned on the target volume PTV (in red)

This image illustrates complete coverage of the PTV by the 95% dose line on this cut. When in the treatment planning system, we will scroll through the plan and check the coverage of all of the cuts.

Page 8 of 13