ATLANTA and DENVER, April 8, 2011 /PRNewswire/ -- At the 2011 American Association of Neurological Surgeons (AANS) Annual Meeting, April 9-13 at the Colorado Convention Center, Elekta (booth #1717) will highlight characteristics of Leksell Gamma Knife® Perfexion™ that separate the system from other radiosurgery solutions. These include its dedication to intracranial cases, complete solution integration, industry-leading accuracy, "shrink-wrap" dose conformity and extensively proven clinical efficacy. Demonstrations of the system will emphasize that Perfexion is designed to minimize the risk of human error and radiation toxicity, while optimizing accuracy and dose conformance.
The ability of Leksell Gamma Knife® to limit radiation exposure to normal tissues was presented in an article published in a recent issue of the Journal of Neurosurgery(1). Investigators found that among three different treatment platforms, therapy planned with Leksell Gamma Knife  would result in "much smaller normal brain volumes receiving any particular dose" than plans developed with the two other systems.
Extending the reach of Gamma Knife surgery
The opportunity to expand the clear clinical and safety advantages of Perfexion is realized in the Extend™ system, which also will be exhibited at the Elekta booth. Extend enables multi-session hypofractionation of a therapy that is traditionally a single-session treatment. Extend  enables clinicians to treat – over two to five fractions – patients with larger tumors or lesions close to critical structures located in the brain, skull base and in other head/neck regions. Extend non-invasively immobilizes the patient's head, making hypofractionated therapy using Perfexion practical for these cases.
Other meeting highlights
At AANS, Elekta also will exhibit several other solutio