# Question bout Radiotherapy Gamma comarsion

**URL:** <https://discourse.slicer.org/t/question-bout-radiotherapy-gamma-comarsion/31287>\
**Category:** Support\
**Created:** [August 22, 2023, 2:25pm UTC](https://discourse.slicer.org/t/question-bout-radiotherapy-gamma-comarsion/31287 "2023-08-22T14:25:03Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![MYasinMohammadi](https://avatars.discourse-cdn.com/v4/letter/m/e9a140/32.png) [@MYasinMohammadi](https://discourse.slicer.org/u/MYasinMohammadi)\
**Post date:** [August 22, 2023, 2:25pm UTC](https://discourse.slicer.org/t/question-bout-radiotherapy-gamma-comarsion/31287/1 "2023-08-22T14:25:03Z")

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Hello, forum members  
I have a question regarding the use of gamma module for dose comparison.  
In this module, by changing the existing parameters, we have reached new results and the green surface has changed. How important are these parameters in terms of treatment? And to what extent are we allowed to change?

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