Fig. 2.

Representative images of the coronary arterial tree from a patient randomized to low-iodine contrast volume dual-energy coronary CT angiography protocol. Images of the coronary arteries are not inferior to that of a standard iodine contrast volume coronary CT angiography protocol as seen in Figure 1. There is a short segment occlusive plaque in the proximal LAD (A). The circumflex artery (B) and RCA (C) are normal in appearance with no plaque identified. Assessment of the coronary artery vasculature is optimal with image quality Likert scores of 4 to 5/5. LAD, left anterior descending; RCA, right coronary artery.