Fig. 4From: Volumetric and dosimetric comparison of organs at risk between the prone and supine positions in postoperative radiotherapy for prostate cancerComparison of DVH parameters between the supine and prone positions. a V40 of the rectum. b Mean dose of the bladder. c V65 of the bladder. Abbreviations: DVH dose-volume histogram, Vx percent volume of the organ receiving x Gy radiation. P values were calculated by the paired t-testBack to article page