Intoduction to RSNY - Version 1.0 Welcome to Radiosurgery New York. We are one of the leading centers for radiation and radiosurgery worldwide - having led the way with fractionated brain radiosurgery and been first in the Western Hemisphere with non-invasive Body Radiosurgery. Radiosurgery New York is dedicated to sophisticated radiation treatments. Our physicians have had extensive experience using non-invasive fractionated stereotactic radiosurgery both in the brain and body, as well as prostate.