Modern Bt Techniques - Florence 2016

Seeds with 131 Cs Radioactive Isotope

• Apparent Activity Conversion Factor

0.638 U.mCi -1 versus 1.27 U.mCi -1 for 125 I and 1.29 U.mCi -1 for 103 Pd

• Initial Dose Rate (at the prostate surface) 30 cGy.h -1 versus 7 cGy.h -1 for 125 I and 20 cGy.h -1 for 103 Pd