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Varian Medical Systems Receives FDA 510(k) Clearance for High-Definition Collimator That Enables Ultra-Fine Intensity-Modulated Radiosurgery
Date:9/18/2007

Ultra-Fine Beam Shaping Device Optimized for Targeting Tumors and Other Abnormalities with High-Dose Stereotactic Radiotherapy and Radiosurgery

PALO ALTO, Calif., Sept. 18 /PRNewswire-FirstCall/ -- Varian Medical Systems, Inc. (NYSE: VAR) has received FDA 510(k) clearance for a new high-definition multileaf collimator (MLC), an ultra-fine beam shaping device for radiosurgery.

The new HD120 MLC multileaf collimator enables clinicians to deliver extremely precise radiosurgical treatments, including intensity-modulated radiosurgery (IMRS), and will be included with the new Novalis Tx(R) radiosurgery system that Varian is teaming up with BrainLab to offer (see related press release entitled Varian Medical Systems and BrainLAB Join Forces to Introduce Novalis Tx(R)).

The Novalis Tx offers a non-invasive alternative to conventional surgery for a wide spectrum of conditions, including benign and malignant tumors, metastatic cancer, and neurological conditions like arteriovenous malformations, trigeminal neuralgia, and acoustic schwannoma.

"Successful irradiation of these types of abnormalities depends on doctors' ability to deliver a high dose of radiation with the precision of a surgical strike, sparing the surrounding tissues," said Calvin Huntzinger, MS, marketing and engineering manager for Varian's Surgical Sciences product line. "Varian's new HD120 MLC multileaf collimator doubles the resolution of our best MLC, so it is ideal for carrying out delicate intensity-modulated radiosurgeries near critical structures like the optic chiasm, brain stem, or spinal cord."

A multileaf collimator is a device with many computer-controlled mechanical "leaves" or "slats" that continually shape the treatm
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SOURCE Varian Medical Systems, Inc.
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