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Comparison of 3DCRT plans between ORCI and the RPA. (A) Superior field border extended from L5/S1 on ORCI plan (left) to L3/L4 on RPA plan (right) to ensure the superior edge of the treated field included the aortic bifurcation. (B) RPA plan correctly contoured pelvic lymph node CTV and adjusted treatment field to account for atypical bony anatomy. 3DCRT, 3D conformal radiation therapy; CTV, clinical target volume; ORCI, Ocean Road Cancer Institute; RPA, Radiation Planning Assistant.
