RICHLAND, Wash.--(BUSINESS WIRE)--IsoRay, Inc. (AMEX: ISR), a medical technology company and innovator in seed brachytherapy and medical radioisotope applications, today announced it will host a booth at the 80th Annual Meeting of the American Association of Neurological Surgeons (AANS). The annual meeting will take place April 14-18, 2012 in Miami Beach, Florida at the Miami Beach Convention Center.