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Table 1 Dose constraints

From: ONE SHOT - single shot radiotherapy for localized prostate cancer: study protocol of a single arm, multicenter phase I/II trial

Structure Standardized nomenclature Dosimetric Parameter Per Protocol Acceptable Variation
PTV_19 PTV_19 D98% (Dnear min) ≥ 95% (i.e. 18 Gy)  
D2% (Dnear max) ≤ 107% (ie. 20.3Gy) D5% ≤ 107%, D2% ≤ 110%
Rectal_wall Rectal_wall V9.5Gy (50%) <  40% 40–50%
V15Gy (80%) <  15% 15–20%
V17Gy (90%) (NTD 68 Gy) <  10% <  15%
V19Gy (100%) (NTD 83.6 Gy) <  5% <  10%
V20Gy (105%) (NTD 92 Gy) <  1 cc  
Bladder_wall Bladder_wall V9.5Gy (50%) <  50% 50–60%
V15Gy (80%) <  20% 20–30%
V17Gy (90%) (NTD 68 Gy) <  15% 15–20%
V19Gy (100%) (NTD 83.6 Gy) <  10% <  15%
V20Gy (105%) (NTD 92 Gy) <  1 cc  
Femurs (each) Femur_Rt
Femur_Lt
V14Gy (NTD 48 Gy) <  5% 5–10%
Penile bulb Penile_bulb V14Gy (NTD 48 Gy) <  5% 5–10%
Urethra PRV Urethra_PRV D98% (Dnear min) ≥ 95% (i.e. 16.2 Gy)  
D5% ≤ 107% (i.e. 18.2 Gy)  
D2% (Dnear max) ≤ 110% (i.e. 18.7 Gy)