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DVH constraints for permanent
prostate brachytherapy (I-125)
GEC ESTRO Recommendations 2007
Prostate:
▪
V100 ≥ 95%
of CTV.
▪
D90 > 100%
of prescription dose.
▪
V150 ≤ 50%
of CTV.
Rectum:
▪
Primary parameter:
D
2cc
≤ 145 Gy
.
▪
Secondary parameter:
D
0.1cc
(~D
max
) < 200 Gy
.
Urethra:
▪
Primary parameter:
D
10
< 150%
of the prescription dose.
▪
Secondary parameter:
D
30
< 130%
of the prescription dose.