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Table 3 Dosimetric results

From: Salvage robotic SBRT for local prostate cancer recurrence after radiotherapy: preliminary results of the Oscar Lambret Center

Dosimetric results Median (range)
Whole-prostate Treatment n = 19
 PTV volume (cm3) 48 (16–131)
 PTV D98 (Gy) 30.4 (8.7–36)
 PTV D95 (Gy) 32.5 (13–36.5)
 PTV D50 (Gy) 38.3 (35.2–40.2)
 PTV D2 (Gy) 42.9 (39.3–46.9)
 CTV volume (cm3) 29.5 (6–87.2)
 CTV D98 (Gy) 35.8 (11.1–37,7)
 CTV D95 (Gy) 36.3 (15.6–38.3)
 CTV D50 (Gy) 38.8 (36.2–41)
 CTV D2 (Gy) 42.2 (39.38–47.27)
Hemi-prostate Treatment n = 1
 PTV volume (cm3) 34.1
 PTV D98 (Gy) 14.83
 PTV D95 (Gy) 22.5
 PTV D50 (Gy) 39.67
 PTV D2 (Gy) 43.79
 CTV volume (cm3) 22.8
 CTV D98 (Gy) 21
 CTV D95 (Gy) 27.78
 CTV D50 (Gy) 40.41
 CTV D2 (Gy) 43.97
Focal treatment n = 3
 GTV volume (cm3) 3.7 (0.6–6.9)
 GTV D98 (Gy) 37.6 (37.58–37.71)
 GTV D95 (Gy) 38.1 (37.99–38.16)
 GTV D50 (Gy) 39.77 (39.32–40.23)
 GTV D2 (Gy) 41.2 (41.19–41.22)
Organ-at-risk n = 23
 Dmax rectum (Gy) 34.8 (6.8–42.26)
 D2cc rectum 23.83 (4–36.3)
 V12 rectum (cm3) 8.2 (0–44.2)
 V27 rectum (cm3) 1.3 (0–14.7)
 Dmax bladder (Gy) 36.2 (15.9–41.9)
 D5cc bladder (Gy) 25.3 (6.7–37.4)
 V12 bladder (cm3) 16 (0.2–108)
 V27 bladder (cm3) 3.2 (0–26.8)