Gamma Knife Therapy. Definition

Medical Definition: Gamma Knife Therapy

Treatment that uses gamma rays, a type of high-energy radiation that can be focused accurately on small tumors or other lesions of the head or neck, so that very little normal tissue receives radiation. Gamma rays aimed at the tumor from many different angles at once and sent a large dose of radiation precisely to the tumor in one treatment session. This procedure is a type of stereotactic radiosurgery. Treatment with Gamma Knife (Gamma Knife) does not use a knife or is surgery. Gamma Knife is a registered trademark of Elekta Instruments, Inc.

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