What is Gamma Knife® Surgery? Gamma Knife® surgery, sometimes referred to as stereotactic radiosurgery, is a non-invasive method for treating brain disorders. It is the delivery of a single, high dose of radiation to an intra-cranial target in the skull. The extreme precision of Leksell Gamma Knife® makes it possible to administer a high radiation dose to the diseased area, minimizing the risk of damaging healthy tissue. Click Here to learn more...