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. 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 early-stage prostate cancer. Men with intermediate disease, potentially combined with hormone therapy. Men with high-risk, aggressive disease. 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. Men who have had surgery and there is concern that the prostate cancer is either at high risk to return, or may still be present in the surgical bed.
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.