What margins (CTV and PTV) do you use for boosting breast lumpectomy cavity?
Answer from: Radiation Oncologist at Community Practice
RTOG says:
Contour seroma/architectural distortion/relevant clips/lump scar as GTV.
Add 1cm expansion for CTV, posteriorly carve til anterior to pec major and don't cross midline; pull into skin 5mm.
Add 0.7cm expansion for PTV but exclude heart.
Then create PTVeval - pull PTV into skin 5mm, d...
Comments
Radiation Oncologist at Varian Medical Systems/Allegheny health network In practice, we seldom use this volume. To cover t...
Radiation Oncologist at CCare Dr. @Beriwal, do you add aim to cover a margin pos...
Radiation Oncologist at Varian Medical Systems/Allegheny health network Usually 90% of IDL covering the depth of cavity.
In practice, we seldom use this volume. To cover t...
Dr. @Beriwal, do you add aim to cover a margin pos...
Usually 90% of IDL covering the depth of cavity.