Table 2 Parameters of permanent and temporary iodine-125 seeds (Adapted from [13, 147]).

Activity per source

0.1-3mCi

3-50mCi

Dose

80-700Gy

30-200Gy

Dose rate

3-30cGy/h

3-125cGy/h

Number of sources per case

1-171

1-28

Time to dose

infinity

4-50 days