480-481 / 2001
Prostate:
The V100 (the percentage of the CTV that receives the
prescribed dose) must be at least 95% (V100 ≥ 95% of CTV).
The D90 (the dose that covers 90% volume of the CTV) will be
larger than the prescription dose D90 > 100% of prescription
dose).
The V150 (the percentage of the CTV that receives 150% of the
i ti d ) h ld b
l t l th 50% (V150 ≤
prescr p on ose , s ou e equa o or ess an
50% of CTV).
Rectum:
Primary parameter: D ≤ reference prescription dose of 145
2cc
Gy.
Secondary parameter: D
0.1cc
(~Dmax) < 200 Gy.
Urethra:
Primary parameter: D
10
< 150% of the prescription dose.
Secondary parameter: D
30
< 130% of the prescription dose.