From: Influence of daily imaging on plan quality and normal tissue toxicity for prostate cancer radiotherapy
Enpoint (toxicity grades)
TD50 (Gy)
Slope m
Volume factor n
Rectal bleeding (G1&2)
59.2
0.29
0.17
Proctitis (G1&2)
57.3
0.33
0.2
Rectal bleeding (G2)
68.9
0.16
0.18
Proctitis (G2)
68.3
0.22