sterotactic radiation therapy
(ster-E-Oh-tak-tik rAd-E-A-shun ther-uh-pE
A radiation therapy
technique involving a rigid head frame that is attached to the skull; high-dose radiation is administered through openings in the head frame to the tumor while decreasing the amount of radiation given to normal brain tissue. This procedure does not involve surgery. Also called stereotaxic radiosurgery and stereotactic radiosurgery.