RICHLAND, Wash.--(BUSINESS WIRE)--New information about the safety and efficacy of IsoRay Medical’s Cesium-131 brachytherapy seeds will be presented at the American Brachytherapy Society’s (ABS) 28th Annual Meeting to be held April 29th though May 1st, 2007 in Chicago, Illinois. Four submissions from key opinion leaders in the brachytherapy market will provide highly sought after information regarding Cesium-131 brachytherapy seeds.