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Table 1 Dose-volume relationships for the planning target volume, rectum, and bladder for 261 patients

From: Three-dimensional conformal arc radiotherapy using a C-arm linear accelerator with a computed tomography on-rail system for prostate cancer: clinical outcomes

Patients IC dose D95 (PTV) V80R V70R V50R V80B V70B V50B
  (Gy) (Gy) (%) (%) (%) (%) (%) (%)
median 82 75.9 0.4 6.7 24.5 5.5 12.2 22.2
range 78–86 70.8–80.9 0–3.2 3.0–11.2 12.1–42.2 0–18.9 2.8–30.7 7.8–50.5
  1. PTV planning target volume, IC isocenter, D95(PTV) the dose given to 95 % of the PTV; V80R, V70R, and V50R, percent of the volume of the rectum receiving 80 Gy, 70 Gy, and 50 Gy, respectively; V80B, V70B, and V50B, percent of the volume of the bladder receiving 80 Gy, 70 Gy, and 50 Gy, respectively