What is your bladder constraint for LDR prostate brachy?
HDR CT planned prostate brachytherapy stipulates bladder V75% Rx<1cc. What bladder constraint is used for LDR prostate brachytherapy?
2 Answers
Mednet Member
Radiation Oncology · Medical University of South Carolina
Answered on
There are typically no bladder constraints with LDR planning. The bladder itself should generally not be in the PTV.
The urethra does have important planning objectives/constraints, which depend on isotope and technique used. ABS guidelines are a good place to start.
Some people do have loose constr...
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Mednet MemberInvited Expert
Radiation Oncology · Varian Medical Systems/Allegheny health network
Answered on · Updated on
We try to limit bladder neck area covered by 80-85% IDL instead of 100%.
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