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News

Oklahoma CyberKnife reports 50 percent decrease in treatment times

Accuray : 23 September, 2008  (Company News)
Oklahoma CyberKnife, which is operated in partnership with US Radiosurgery, has reduced treatment planning and delivery times during the last two months with installation of the next generation CyberKnife Robotic Radiosurgery System from Accuray.
Overall treatment times have decreased an average of 50 percent compared to those treatments done at other US Radiosurgery facilities around the country, which have earlier models of the CyberKnife System.

In their first eight weeks of treatment Oklahoma CyberKnife completed more than 50 total treatments, including patients with cancer of the prostate, lung, brain, spine and kidney. An example of the dramatic decrease in treatment time is the Center's recent prostate cancer treatment, which was completed in less than 40 minutes. Other US Radiosurgery facilities, which include Boulder, Colorado, Philadelphia and Salt Lake City, are treating prostate cancer in approximately 75 minutes using the earlier model CyberKnife System.

'The next generation CyberKnife System incorporates a number of new features that enhance treatment planning and result in faster treatment times,' said Diane Heaton, MD, medical director at Oklahoma CyberKnife, which was the first facility in the world to install the upgraded technology. 'With these advanced tools, I believe we will progress to the point of doing 10 to 15 CyberKnife treatments a day.'

The next generation CyberKnife System installed at Oklahoma CyberKnife incorporates a number of sophisticated technologies to achieve a reduction in treatment times, including:

- Sequential Optimization Planning Tool - enables treatment plans to be developed in as little as 15 minutes.

- 800 Monitor Unit/Minute Linear Accelerator - delivers higher doses of radiation to tumors, resulting in treatment times that are up to 30 percent faster than previous systems.

- Iris Variable Aperture Collimator - enables conformal, multi-collimator treatments to be rapidly delivered to even the most complex targets.

- Optimized Path Traversal - supports more efficient robotic motion by allowing the CyberKnife System to skip over nodes where radiation dose is not being delivered.

'Even after just two months, it is clear that the improvements made to the CyberKnife System will enable us to increase the number of patients we expect to treat at our Oklahoma facility,' said Greg Spurlock, chief operating officer of US Radiosurgery. 'The next generation CyberKnife System is making such a significant, positive impact on our business model and the efficacy of our Oklahoma facility that we are considering upgrading the CyberKnife Systems at some of our busiest centres in order to better meet demand.'

The average CyberKnife treatment is completed in three outpatient visits. Compared to the 40 outpatient visits commonplace with conventional radiation therapy, the next generation CyberKnife System can significantly ease the burden on both patients and providers by offering a nearly 60 percent reduction in total treatment time.

In addition to Oklahoma CyberKnife, which opened in July 2008, US Radiosurgery is installing another next generation CyberKnife System in a new Reno, Nevada facility that is expected to open within the next month.
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