905 / 1983
Tra
Zelefsky M et al, IJROBP 2012; 84 (1): 125-129
PTV = prostate + entire seminal vesicles + a 1-cm margin except
posteriorly, where a 0.6-cm margin was used
“…PTV regions receiving less than the prescription
routinely included the prostate e rectal interface (to
adhere to our rectal dose e volume constraints) and
occasionally the superior portion of the seminal
vesicles to adequately spare small bowel….”