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Dosimetric consequences of increased seed strength for I-125 prostate implants
Ron S Sloboda1, John E Pedersen, John Hanson
1Cross Cancer Institute, 11560 University Avenue, Edmonton, Alberta T6G 1Z2, Canada.
Abstract:
Based on the findings of an earlier planning study, we compared post-implant dose distributions for two groups of 20 consecutive patients treated to 145 Gy with 0.414 and 0.526 U I-125 seeds. Dosimetric coverage as measured by the key clinical index D(90) was significantly better for the higher-strength seeds, with no apparent deleterious effects.