CYBERKNIFE® ROBOTIC RADIOSURGERY SYSTEM

A new paradigm in full body radiosurgery, the CyberKnife System leads the field with groundbreaking technology.

Continual Image Guidance Throughout the Treatment - Many tumors, even when immobilized, have proven to shift during treatment delivery. Using advanced robotic technology and continual image guidance, the CyberKnife System delivers unprecedented targeting accuracy with the unique ability to automatically correct for intra-fraction target motion – without interrupting the treatment or having to reposition the patient.

Automated Non-Coplanar Treatment Delivery - Unconstrained by the clockwise / counter-clockwise gantry rotations of conventional radiotherapy systems, the robotic mobility of the CyberKnife System delivers automated non-coplanar treatments without clinician intervention or treatment interruption. This capability efficiently enables unrivaled conformality and dose gradient for treating even the most complex targets.

Beams Move in Real-Time with 3D Respiratory Tumor Motion - Without the limitations of conventional respiratory gating and breath-holding techniques, the CyberKnife System delivers beams that move precisely with tumor motion throughout the respiratory cycle. By dramatically reducing the planning margins to only that which are clinically relevant, the CyberKnife System has proven to provide unparalleled healthy tissue preservation.

Accuray's history began when John R. Adler, M.D., professor of neurosurgery and radiation oncology at Stanford University Medical Center, developed the CyberKnife® System in 1987 after completing a fellowship in Sweden with Lars Leksell, M.D., the founder of radiosurgery. With the CyberKnife System, Adler’s vision was to develop a non-invasive robotic radiosurgery system with superior accuracy for treatment of tumors anywhere in the body. The revolutionary concept reached far beyond the practice of radiosurgery at the time, which restricted radiosurgery to the treatment of intracranial tumors.

In 2005, Accuray introduced the Xsight® Spine Tracking System, which made it possible to automatically track, detect and correct for tumor movement throughout the treatment without implanting radiographic markers or fiducials. With Xsight, patients are given a comfortable treatment option for the delivery of radiosurgery with sub-millimeter accuracy along the entire spinal region, while physicians using this system could save time and provide better care to more patients.

Over the years Accuray has evolved the CyberKnife System to take advantage of new technologies and faster computers in order to provide the best system for radiosurgery treatments. In November 2005 Accuray introduced its fourth generation CyberKnife System which delivers faster treatments with greater flexibility making extracranial radiosurgery easier than ever before. In fact, in the quarter ended September 30, 2006, extracranial treatments represented more than 50 percent of CyberKnife System procedures in the United States, including those of the spine, lung, prostate, liver and pancreas.

To date, Accuray’s leadership in developing the most advanced robotic radiosurgery system has brought the superior tumor treatment capabilities of the CyberKnife System to more than 50,000 patients around the world. Since the launch of the CyberKnife System, Accuray has undertaken an aggressive strategy to develop system upgrades that facilitate clinicians’ ability to treat tumors anywhere in the body with the highest levels of accuracy. Currently, Accuray has more than 150 CyberKnife Systems installed worldwide and a large body of peer-reviewed papers supports its clinical practice. Today, Accuray is committed not only to continuing its tradition of advancing the field of robotic radiosurgery, but also to providing its customers with the highest level of support in their ongoing efforts to fight cancer