American College of
Surgeons Oncology Group (ACOSOG) Randomized trial of radical prostatectomy versus
brachytherapy (seeds) for T1c/T2a prostate cancer (ACOSOG Z0070)
(go here)
Stage = T1c or T2a
Gleason 6 or lower
PSA 10 or lower
Volume < 60cc
Seed Dosimetry:
Iodine-125 / 0.28-0.05 mCi/seed/ dose 145Gy
Palladium-103/ 1.0 - 1.6 mCi/seed/ dose 125Gy
volume treated (PTV) adds 2-3mm anteriorly and laterally and 5mm on top and bottom to
get target
PostOp CT includes calculations of V100 andD90.
Since the data shows that cure rates (based on PSA
blood testing or free-from biological failure (FFbF) are the same (see
tables below) they are comparing surgery with seed implants