What is the maximum acceptable hot spot for hypofractionation breast?
For hypofrac breast patient (such as 40 Gy in 15 fractions), what is the maximum hot spot that you will accept anywhere in the breast? 107-8%? 110%? If that acceptable hot spot is not able to be achieved, do you switch to standard fractionation (50 Gy in 25 fractions)?
1 Answer
Mednet MemberInvited Expert
Radiation Oncology · Varian Medical Systems/Allegheny health network
Answered on
We in our practice follow below guideline
V110 of zero percent
V105 less than 10 percent (accept up to 15)
no V105 in IM fold and nipple areolar region
Try to achieve above with FIF, mixed beams and if can't get above then tangential beam IMRT or prone positioning
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