New CyberKnife Technologies Demonstrate Dramatic Reduction in Treat...( First Patients Treated Using Next Ge...),Health

First Patients Treated Using Next Generation CyberKnife System at Oklahoma

CyberKnife Center

SUNNYVALE, Calif., Aug. 5 /PRNewswire-FirstCall/ -- Accuray Incorporated (Nasdaq: ARAY), a global leader in the field of radiosurgery, announced today that the first patients were treated using the next generation CyberKnife(R) Robotic Radiosurgery System that was recently installed at the Oklahoma CyberKnife, LLC in Tulsa, OK. The next generation CyberKnife System, which features new technologies and system upgrades announced at the 2007 American Society for Therapeutic Radiology and Oncology Annual Meeting, is capable of delivering state-of-the-art radiosurgery with significantly reduced treatment planning and delivery times.

Treatment results on the Oklahoma CyberKnife, LLC's first day were ground-breaking. While treatment times will vary based upon case complexity and type of cancer, the first patient treated for an intracranial lesion was completed in only 16 minutes. The next patient, treated for non-small cell lung cancer, required only 27 minutes of treatment time.

Incorporating all of the newest enhancements, the next generation CyberKnife System achieved a considerable reduction in treatment times. Using the latest advancement in treatment planning, Sequential Optimization enabled treatment plans to be developed in as little as 15 minutes. With the new 800 monitor unit/minute linear accelerator treatment times were reduced with a 30 percent faster rate of dose delivery as compared to previous systems. Further, the recently launched Iris(TM) Variable Aperture Collimator enabled very conformal, multi-collimator treatments to be rapidly delivered to even the most complex targets. And with the
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