Fig. 6

A patient with a single coronary artery. Volume-rendered and cardiac transparency images reveals a SCA arising from the left sinus of Valsalva and gives off the left anterior descending (LAD) and circumflex (LCx) branches. The right coronary artery ostium was congenitally absent (Panel A). The LCx is markedly dominant and continues beyond the crux into the atrioventricular groove and provides branches to the right ventricle and atrium (Panel B)