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Radiation Oncology • Genitourinary Cancers
In prostate cancer patients receiving EBRT, when, if ever, do you use MRI to change your seminal vesicle coverage?
For example, in standard high-risk we generally cover proximal 2cm to elective dose, before doing cone down boost to prostate and proximal 1cm.
If a tumor is localized away from the SV, would that affect your CTV?
If MRI shows SV invasion, how does that affect your CTV?
Answer from: Radiation Oncologist at Community Practice
Yes! I routinely get MRI as part of planning. This obviously helps with delineation of median lobe and prostate apex, but can also show involvement of the SV.
I do not reduce elective coverage based on MRI images, because the decision to treat SV is related to risk of microscopic involv...
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