Figure 2.

Colored three-dimensional (3D) volume rendered CT angiography images showing single coronary artery (SCA) arising as a common trunk from the right sinus of Valsalva and bifurcating into the right coronary artery (RCA) and the left main coronary artery (LMCA). RCA gives rise also to distal LAD which courses anterior to the PA on its way to the left ventricle. LMCA crosses the base of the heart turning posteriorly behind the aorta dividing into proximal left anterior descending artery (LAD) and circumflex artery. Left atrium (LA), aorta (Ao), and pulmonary artery (PA).