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First patients treated Oklahoma CyberKnife using new robotic radiosurgery system

Accuray : 06 August, 2008  (Application Story)
Accuray has announced that the first patients have been treated using the next generation CyberKnife Robotic Radiosurgery System recently installed at the Oklahoma CyberKnife in Tulsa, Oklahoma, USA.
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'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 Variable Aperture Collimator enabled very conformal, multi-collimator treatments to be rapidly delivered to even the most complex targets. And with the new Optimized Path Traversal feature, treatment times were further reduced with more efficient robotic motion.

'This new CyberKnife System configuration now allows us to deliver radiosurgical quality treatments almost as fast as radiation therapy,' said Greg Spurlock, chief operating officer of US Radiosurgery, the managing partner of Oklahoma CyberKnife. 'With the CyberKnife System however, the entire course of therapy is completed in one to five treatments. Compared to the two month regimen of 30 to 40 treatments required with conventional radiation therapy, the CyberKnife System clearly benefits both the patient and the provider.'

Lung cancer treatments with the CyberKnife System are typically completed in three sessions. The net result of the introduction of these new technologies is to deliver an entire course of Radiosurgery in about 1.5 hours. The shorter treatment regimen of CyberKnife Radiosurgery not only improves patients' quality of life by not requiring a prolonged course of daily treatment visits, it can also lighten the burden on healthcare providers, saving time, expense and overhead, while also providing for significantly greater patient throughput.

'For all radiation delivery systems, plan quality and treatment time have historically had an inverse relationship,' said Eric P Lindquist, senior vice president and chief marketing officer of Accuray. 'While other Radiosurgery systems actively promote fast treatment times, plan quality often suffers accordingly. Integrating all of the latest technologies, CyberKnife treatment times can now be reduced considerably with absolutely no sacrifice in treatment quality.'

While Oklahoma CyberKnife purchased its CyberKnife System with all the next generation upgrades included, those same upgrades were made available to existing customers through Accuray's Diamond Elite Service Agreement, which enables customers to choose the right upgrades and payment plans to fit their technology strategy.

'We are very pleased with this new ability to efficiently deliver the highest quality, state-of-the-art Radiosurgery to the Tulsa community,' said Spurlock.
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