Information for Referring Physicians
Gamma Knife® Stereotactic Radiosurgery
Gamma Knife stereotactic radiosurgery is safe, effective, non-invasive and Medicare-approved treatment for patients with benign and malignant brain tumors or vascular and functional disorders of the brain.
Gamma Knife offers hope to patients with tumors formerly considered inoperable and those considered high-risk for open surgical procedures due to illness, advanced age, or other medical conditions. Patients may be eligible for Gamma Knife even if they previously had open brain surgery, radiation or chemotherapy, or embolization for arteriovenous malformations (AVM).
Leksell Gamma Knife Perfexion ™
The first full redesign of the Gamma Knife in 30 years, Perfexion focuses 192 converging beams of high-dose cobalt60 generated photons onto a computer-mapped focal point. Extreme precision, with total radiological accuracy of better than 0.5mm, makes it possible to administer a high radiation dose to the lesion with minimal risk of damaging healthy tissue. A study of 189 installed systems, based on 332 commissioned protocols, proved an average level of radiological accuracy of 0.15mm. Gamma Knife reduces risks associated with open skull surgery and high costs associated with hospitalization and rehabilitation. Patients are treated with a local anesthetic and remain awake throughout the procedure. A mild sedative may be given and a stereotactic frame is attached to the head. Patients experience little discomfort and are usually discharged on the day of treatment and able to resume normal activities within a day or two. Results are shown to be comparable or superior to conventional neurosurgery (depending on the treated condition).
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