Fig. 1From: Urethra-sparing stereotactic body radiotherapy for prostate cancer: how much can the rectal wall dose be reduced with or without an endorectal balloon?Three-dimensional representation of the PTV, uPRV, bladder, and rectum for the same patient with a colorwash display of the dose (from 10 to 60%) comparing plans Vmref vs. Vm4 with and without ERBBack to article page