First, you’ll have a 45-to-90-minute preparation session with x-ray, computed-tomography (CT), and possible MRI exams to help your doctors design your specialized treatment plan. Your doctors may mark your skin with semi-permanent ink or a small tattoo to help them align the IMRT equipment during your treatments. Because you must keep very still during your treatments, your doctor may develop special molded plastic or foam supports to help you comfortably maintain the same position.
You may also have a gel spacer called SpaceOAR injected to increase the distance of the rectum from the prostate. This decreases the risk of radiation affecting the rectum. The office procedure is minimally-invasive and takes around 15 minutes. Once the spacer is in place most men don’t feel it. Over time, the spacer is absorbed by the body and excreted in the urine.