Clinical Results after High-Dose Intensity-Modulated Radiotherapy for High-Risk Prostate Cancer

Table 3

Planning parameters for all patients and according to prescription. CTV: clinical target volume; Gy: Gray; PTV: planning target volume; R40 and R60: percentage of the rectal volume receiving a dose of 40 and 60 Gy, respectively; R_mean: mean dose to the rectum, B_max and B_mean: maximal and mean dose to the bladder.

	All (𝑛=126)	74R72 (𝑛=21)	76R74 (𝑛=19)	78R76 (𝑛=86)
CTV volume (cc)	61 (22–180)	86 (26–146)	68 (28–112)	53 (22–180)
Minimum CTV dose (Gy)	73 (55–77)	68 (55–70)	72 (67–74)	73 (68–77)
Median CTV dose (Gy)	78 (72–83)	76 (72–78)	77 (72–82)	79 (74–83)
PTV volume (cc)	155 (48–347)	250 (121–347)	226 (100–289)	123 (48–296)
Minimum PTV dose (Gy)	69 (52–73)	65 (52–68)	67 (65–70)	69 (64–73)
Median PTV dose (Gy)	77 (70–82)	74 (70–76)	75 (72–80)	78 (75–82)
R40	71 (30–97)	90 (88–90)	87 (57–97)	68 (30–94)
R60	43 (22–90)	64 (29–90)	54 (26–69)	40 (22–63)
Rmean	51 (33–71)	57 (39–65)	54 (37–62)	49 (33–71)
Bmax	79 (72–82)	78 (72–79)	79 (76–82)	79 (76–82)
Bmean	43 (13–72)	49 (19–68)	58 (16–65)	40 (13–72)