What IGRT strategy do you use when treating intact prostate and lymph nodes?
How do you prioritize alignment of bony anatomy, prostate and nodes?
Do you have varying PTV margins for different structures or as compared to prostate only treatment?
1 Answer
Mednet MemberInvited Expert
Radiation Oncology · Varian Medical Systems/Allegheny health network
Answered on
This does become challenging at times. Most of the time we give a slightly larger PTV margin for nodal CTV and keep similar margins for the Prostate. We align daily to Prostate as it is being treated to higher dose and make sure PTV margin which is given to nodes is sufficient to cover nodal CTV. On...
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