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What constraints do you use for the external beam portion of radiation when combined with brachytherapy boost?
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1 AnswersMednet Member
Radiation Oncology · Prostate Cancer Institute of America
Simply “scale” down your constraints for the bladder, rectum, and fem heads for a 44fx regimen down to 25. It’s a simple mathematical calculation. No need to convert for small bowel or penile bulb, as these tissues should not get a dose from the implant. The scaled constraints allow for some flexibi...