People with low- and intermediate-risk prostate cancer treated with either of two types of contemporary radiation therapy - proton beam therapy or intensity modulated radiation therapy (IMRT) - ...

Radiation therapy (also called radiotherapy) uses high-energy beams or subatomic particles to damage the DNA inside prostate cancer cells. After enough damage, the cells cannot multiply, and they die.

There are several different types of radiation therapy. The type that may be recommended for you depends on a variety of factors, such as your cancer, its stage, and your treatment goals. Radiation ...