A, C, E: Noncontrast CT scans of a participant with a CAC score of 0, no signs of coronary artery disease at CT and no major adverse cardiovascular events. B, D, F: Noncontrast CT scans of a participant who had a CAC score of 1013 and obstructive coronary artery disease at CT and required a revascularization procedure. Images courtesy of RSNA.