Intra-Urethral Radiotransponder Beacon Guided Stereotactic Body Radiation Therapy in Treating Patients with Prostate Cancer
This trial studies how well intra-urethral radiotransponder beacon guided stereotactic body radiation therapy works in treating patients with prostate cancer. Stereotactic body radiation therapy is a type of radiation treatment that gives fewer but higher doses of radiation than standard radiation. It uses special equipment to position the patient and guide focused beam toward the cancer and away from normal surrounding prostate tissue. The higher dose technique may work better to kill cancer cell potentially with fewer side effects than standard radiation therapy. Radiotransponder beacons are tiny seeds, about the size of a grain of rice, that send out radio waves to tell the radiation therapy machine where to aim. This may help the machine adjust for movements and may allow less radiation to go to normal tissues.