Sunnyvale, Calif. -- Accuray Incorporated (Nasdaq: ARAY), a global leader in the field of radiosurgery, today announced that its CyberKnife® Robotic Radiosurgery System has been used to treat more than 2,000 lung cancer patients worldwide. The company also reported that the first patient was treated using the recently introduced Xsight> (tm)> Lung Tracking System, a system that works with the CyberKnife System to precisely track and treat some lung tumors non-invasively.

The CyberKnife System reached the 2,000 patient milestone so rapidly because it is the only dedicated radiosurgery system capable of treating tumors anywhere in the body. By expanding radiosurgery beyond intracranial tumors, the CyberKnife System gives hope to more cancer patients, including patients who oppose surgery or who were previously considered inoperable. The addition of the Xsight Lung Tracking System now extends this treatment opportunity to an even larger patient population, such as older patients and those who may not be able to tolerate the invasive implantation of fiducials.

"In the three and a half years I have been treating primary and metastatic lung tumors with the CyberKnife System, the clinical results have been impressive, in fact, the results are so good that in some of the early cases , the CT scan obtained after the CyberKnife treatement were indistinguishable from those achieved with surgery," said John Kresl, M.D., Ph.D., St. Joseph's Hospital and Barrow Neurological Institute in Phoenix, Ariz. "The CyberKnife System gives patients who cannot or do not want to undergo surgery the best non-invasive, pain free treatment option with the least side effects or risk for reduced lung function."

"The CyberKnife System is unique in its ability to accurately treat lung tumors that move with respiration," said Mark Brenner, M.D., chief of the department of radiation oncology at Sinai Hospital in Baltimore, Md." When lung tumor procedures require the implantation of fiducials, almost one-third of patients experience pneumothorax. The CyberKnife System's Xsight Lung Tracking System enables us to reduce this risk and other painful complications inherent to these treatments."

According to the American Cancer Society (ACS), lung cancer is the leading cause of cancer-related deaths in the United States and will account for approximately 29 percent of all cancer deaths in 2007. In fact, each year almost twice as many women die from lung cancer than from breast cancer. The ACS projects that more than 213,000 new cases of lung cancer will be discovered this year, accounting for 15 percent of all cancer diagnoses.

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