Stereotactic radiosurgery uses many precisely focused radiation beams to treat tumors and other troubles in the brain, neck, lungs, liver, spinal column and other parts of the body. Like other forms of radiation, stereotactic radiosurgery works by damaging the DNA of the targeted cells. Body radiosurgery is used to treat lung, liver, adrenal and other soft tissue tumors, and therapy commonly entails multiple sessions. It's sometimes called stereotactic body radiotherapy or stereotactic ablative radiotherapy when physicians use stereotactic radiosurgery to treat tumors in areas of the body other than the brain. Each beam has very little effect on the tissue it travels through, however a targeted dosage of radiation is delivered to the site where all the light beams intersect. The high dose of radiation delivered to the affected area causes tumors to reduce and capillary to shut off over time complying with therapy, robbing the tumor of its blood supply. For the most part, radiosurgery has a lower risk of side effects compared to other types of typical surgical procedure or radiation therapy.
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