August 5, 2011 – New software aimed at making computed tomography (CT) safer for patients estimates the radiation risk based on age, gender and size rather than using the current “one size fits all” approach. The software program, tested on more than 6,500 scans, was introduced at the 2011 Joint Meeting of the American Association of Physicists in Medicine (AAPM) and Canadian Organization of Medical Physicists (COMP).