Seattle CyberKnife Center

A non-invasive alternative to conventional surgery
using targeted radiation.

Stereotactic radiosurgery, despite its name, is a non-surgical procedure that uses precisely targeted radiation to treat certain types of tumors and other inoperable medical disorders. Treatment involves a single high-dose or multiple doses of X-ray beams that converge on the specific area where the abnormality resides. Advanced three-dimensional computer-aided planning software helps minimize the amount of harmful radiation to healthy surrounding tissue.

Stereotactic radiosurgery works in the same way as other forms of radiation treatment. It does not actually remove the tumor; rather, it distorts the DNA of tumor cells. As a result, these cells lose their ability to reproduce.

Stereotactic radiosurgery, until CyberKnife, was limited to treatment of tumors and lesions of the head. CyberKnife's advanced robotics and image guidance has the precision and accuracy to treat abnormalities anywhere in the body.