July 22, 2014 — Medical researchers have confirmed the Edge radiosurgery system from Varian Medical Systems can deliver dose to a targeted tumor with sub-millimeter isocenter accuracy. The researchers, from the Champalimaud Centre for the Unknown in Lisbon, Portugal, and other teams from the Henry Ford Health System in Detroit, Michigan, made seven scientific presentations about the Edge system during the 2014 American Association of Physicists in Medicine (AAPM) meeting from July 20-24.
The Champalimaud team worked with scientists from Varian to conduct "end-to-end" testing of the Edge system, to demonstrate its diverse subsystems can work together to yield sub-millimeter accuracy when delivering dose.
Investigators from the Henry Ford Health System did early work with the Edge radiosurgery system covering a wide spectrum of clinical issues, from the accuracy of patient setup for image-guided intracranial (brain) radiosurgery to methods for accurately commissioning a new Edge system. One of the Henry Ford teams presented preliminary data on the accuracy of dose calculations for treating small, elongated tumors with radiosurgery.
The Edge radiosurgery suite combines Varian's world-class technologies in an end-to-end solution for planning and delivering radiosurgery treatments. It integrates Varian's most advanced medical linear accelerator — a machine that produces the high energy X-ray beams used to treat disease — with tools for real-time imaging, tumor tracking, motion management and patient positioning. The Edge enables fast, accurate delivery of stereotactic radiosurgery for treating lesions, tumors and conditions anywhere in the body where radiotherapy is indicated, including tumors of the lung, prostate, spine and brain.
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