Hi doctors, was just wondering what is gamma knife radiosurgery?

Radiation to tumor: Stereotactic radiosurgery (srs) is precisely focused radiation beams to treat tumors and other abnormal growths in the brain, spinal column and other body sites.Delivers high doses of radiation to tumor with minimal exposure to surrounding healthy tissue. Specialists monitor doses to avoid the risk of radiation overexposure.No incision iminimizing infection or bleeding without gen anesthesia.