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Radiation Oncology • Genitourinary Cancers
What is the best IGRT strategy in treating the prostate bed (adjuvant or salvage): Daily anatomy KV images vs. fiducial seed kv images vs. CBCTs?
Is there data demonstrating an advantage of one particular IGRT strategy over another?
Answer from: Radiation Oncologist at Academic Institution
For our post-prostatectomy men, we use daily kV and line up to surgical clips if available (contouring out a clip each quadrant of the prostate bed if possible) with a PTV expansion of 5 mm. If clips are not present, then we use CBCT to evaluate soft tissue alignment and use a slightly larger PTV of...
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