The radiation therapist will position you with guidance from the radiation oncologist based on these x-rays. The radiation therapist will then deliver the treatment. Sometimes, x-rays or a CT scan will be taken during the treatment to monitor the position of the tumor. Treatment can take up to one hour or more.

Who performs gamma knife surgery?

Your neurosurgeon positions the frame. You'll receive four injections of a local anesthetic, one on each side of your forehead and two in the back of your head. These are the areas where specials pins are placed to fasten the head frame to your skull.

How is stereotactic radiosurgery performed?

Gamma Knife stereotactic radiosurgery technology uses many small gamma rays to deliver a precise dose of radiation to a target. Stereotactic radiosurgery (SRS) uses many precisely focused radiation beams to treat tumors and other problems in the brain, neck, lungs, liver, spine and other parts of the body.