Intensity Modulated RadiationHigh-energy particles that cause ionization and tissue damag... Full Definition Therapy (IMRT) is a radiation delivery system that is used to treat difficult-to-reach tumors, including those that have spread beyond the prostateThe prostate is a walnut-sized gland located between the bla... Full Definition. It uses advanced software and an X-ray machine called a linear accelerator to deliver radiation in sculpted doses that match the exact contour of the tumorA lump or swelling caused by abnormal growth of cells. Not a... Full Definition. This means a higher dose of radiation can be delivered without affecting nearby tissue.
Who is this treatment best for?
Men with intermediate disease or high-risk, aggressive disease that has metastasized. IMRT may be combined with hormone therapy. Radiation may also be appropriate for men who are not good candidates for surgery due to advanced age or other medical or physical conditions that could make surgery risky or difficult.
What to Expect
Prior to beginning therapy the patient will undergo imaging to guide the placement of markers for the radioactive beam. Markers may be inserted into the prostate or the patient may receive an external tattoo. The doctor positions the patient on the table according to the marker and treatment begins. It lasts 10–30 minutes. The doctor may reposition the patient a few times. A typical course of treatment lasts 6–8 weeks.
Who orders or performs the treatment?
What are common side effects?
Men may experience pain, a burning sensation or uncomfortable urination, blood in the urine, an urgent need to urinate, urinary incontinence, erectile dysfunction, fatigue, or diarrhea.