CHICAGO--(BUSINESS WIRE)--New clinical trial results from the Alternans Before Cardioverter Defibrillator (ABCD) trial were presented today at the American Heart Association’s 2006 Scientific Sessions conference in Chicago. The study found that a non-invasive test that uses computer technology to predict a patient’s risk for sudden cardiac death has proven itself comparable to an invasive and more expensive procedure commonly used by cardiac electrophysiologists to determine a patient’s eligibility for an implanted defibrillator.