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News

New digital linear accelerator delivers faster, precise cancer tumour treatment

Elekta : 29 October, 2007  (New Product)
Elekta has unveiled Elekta Infinity a new digital linear accelerator optimised for delivering Volumetric Intensity Modulated Arc Therapy (VMAT) at the 49th Annual Meeting of The American Society for Therapeutic Radiology and Oncology (ASTRO).
VMAT is a very fast Intensity Modulated Radiation Therapy (IMRT) treatment delivered in single or multiple arcs.

In the Elekta booth, Jay Hoey, executive vice president product creation at Elekta and CEO of IMPAC Medical Systems, announced the new Elekta Infinity, which more precisely targets tumours and protects surrounding healthy tissue, while drastically reducing radiation therapy treatment times.

“Elekta is committed to fighting serious disease and improving quality of life,” said Hoey. “The Elekta Infinity with VMAT demonstrates this by benefiting patients with dramatically shorter treatment times and highly precise tumour targeting.”

Utilising Elekta’s VMAT solution improves on existing IMRT technologies and offers a faster alternative to helical tomotherapy. Elekta’s VMAT solution, when used with Elekta Infinity, varies the radiation beam during treatment by simultaneously manipulating the gantry position and speed, MLC leaves, dose rate and collimator angle.

This provides several distinct advantages over current IMRT techniques, specifically the ability to deliver more radiation to the target while sparing healthy tissue in less time than existing therapies. In addition, Elekta Infinity combines VMAT with VolumeView 3D cone beam imaging to create high-contrast images with ultra-low dose.

Elekta Infinity allows for a total VMAT treatment session in no more than five minutes, including true VolumeView 3D cone beam images in three minutes and two minutes of highly conformal arc delivery of radiation.

Head and neck treatments including daily 3D imaging can be delivered in less than five minutes with Elekta Infinity. Coupled with the Elekta Infinity system’s clinically proven ultra-low 3D imaging dose, the speed of VMAT treatments can reduce the whole body dose of patients receiving treatment.

Elekta Infinity also protects patients with real-time control point to control point monitoring throughout the process.

Due to the ability of Elekta Infinity to also treat in non-coplanar angles and non trans-axial planes, the system can yield similar or improved dosimetric performance compared to helical tomotherapy.

ASTRO is being held from October 28 to November 1 , 2007 at the Los Angeles Convention Center in California, USA.
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