I have tried a variety of different setups but have found that building a scrotal shelf works the best. The patient is set up supine in the frog leg position using your immobilization method of choice. I then use a custom moldable headrest and place it against the perineum to serve as a shelf for th...

We use a pair of disposable hospital undergarments and pull the scrotum and penis midline up onto the mons pubis. The patient then does this each day when he gets on the linear accelerator and the position is checked by the technologists. There can be some variation day to day with this approach, bu...