Table 1 Clinical Dosimetric Constraints used in Planning

PTV

D2% ≥ 60.8Gy

D98% ≤ 68.5Gy

Median absorbed dose (D50%) to be ±2% of 64Gy in 32 fractions of 2Gy each

Bladder

V15 ≤ 80%

V25 ≤ 75%

V35 ≤ 70%

V50 ≤ 65%

Rectum

D50 ≤ 50Gy

D40 ≤ 64Gy

V50 < 50%,

V60 < 35%,

V65 < 25%,

V70 < 20%,

V75 <15%

Rt Fem Head and Lt Fem Head

D100 ≤ 35Gy

D60 ≤ 45Gy

D10 ≤ 50Gy

Small bowel (non rectal)

V15Gy ≤ 350cc

V30Gy ≤ 150cc

V35Gy ≤ 120cc

V45Gy ≤ 50 cc

V50Gy = 0 cc