Anewsystem with threegroupswas tested, and the secondgroup (Risser0withclosedtriradiatecartilageandRisser 1) was the bestpredictorof a digitalskeletalagescoreof between 400 and 425.
Software would quickly calculate total plaque volume, tally the percentage of stable versus unstable plaque and spit out a "vascular age" score corresponding to heart risk.