Home / Stereotaxic Brain Surgery for Tumor and Functional Neurosurgery
You’ll lie on a bed that slides into the Gamma Knife machine, and your head frame will be attached securely to a helmet inside the machine.
You’ll have an intravenous (IV) tube that delivers fluids to your bloodstream to keep you hydrated during the day. A needle at the end of the IV is placed in a vein, most likely in your arm.
The time needed to complete the procedure may range from less than an hour to about four hours, depending on the size and shape of the target. During the procedure:
The specialized equipment focuses many small beams of radiation on a tumor or other target. Each beam has very little effect on the tissue it passes through, but a targeted dose of radiation is delivered to the site where all the beams intersect.
The high dose of radiation delivered to the affected area causes tumors to shrink and blood vessels to close off over time following treatment, robbing the tumor of its blood supply.
The precision of stereotactic radiosurgery means there’s minimal damage to the healthy surrounding tissues. In most cases, radiosurgery has a lower risk of side effects compared with other types of traditional surgery or radiation therapy.