Accuray Receives FDA Clearance for New Dose Calculation Technique for Body Ra...(w by integrating various speed-up techni...),Health

"The clearance and commercial availability of Accuray's Monte Carlo Dose Calculation algorithm is a significant milestone in the use of radiosurgery to treat tumors anywhere in the body, particularly lung tumors" said Euan S. Thomson, Ph.D., president and CEO of Accuray. "We are extremely excited to be the first to market with a Monte Carlo dose calculation algorithm for photon beam radiation treatment that is capable of calculating the results within minutes. Now our customers will have access to the most state-of-the-art radiosurgery system with the most cutting-edge dose calculation algorithm."

The Monte Carlo dose calculation methodology is ideal for use in treating lung tumors, which are solid masses surrounded by air cavities, because it takes into account varying tissue densities. By integrating the Monte Carlo Dose Calculation algorithm with the CyberKnife(R) Robotic Radiosurgery System, Accuray offers clinicians one of the most advanced tools available today for treating lung cancer.

"Current dose calculation algorithms work well for treating most tumors because the surrounding tissue is relatively uniform, but assumptions had to be made within areas like the lungs and sinuses where tissue densities differ," said Charlie Ma, Ph.D., director of radiation physics at Fox Chase Cancer Center in Philadelphia, who helped develop this customized version of Monte Carlo dose calculation for the CyberKnife System. "Now Accuray's Monte Carlo Dose Calculation algorithm provides the most accurate physics-based model of radiation transfer available to date and the system is capable of computing complex dose distributions within minutes. This is a significant step forward in cancer treatment."

The Monte Carlo Dose Calculation capability will
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