Permanent seed implantation, also known as brachytherapy, involves the insertion of small, carefully spaced, radioactive pellets into the prostate. After implantation, the seeds emit a low but continuous energy over a period of...

High dose rate brachytherapy (HDR) is done in 4 steps. The first step is placement of catheters into and around the prostate. Once the catheters are in position, the two next steps are called “simulation” and “dosimetry.” Simulation involves taking...