Table 1.

Rectal dose constraints for 3D and IM as per local guidelines [5]

Dose (Gy)	% of total Rectum receiving dose
40Gy	≤ 60% (≤35% with IM)
65Gy	≤ 40% (≤17% with IM)
70Gy	≤ 30%
75Gy	≤ 10%