Prevalence, Spectrum, and Outcomes of Single Coronary Artery Detected on Coronary Computed Tomography Angiography (CCTA)

Figure 4

Case 3: 3D volume-rendered coronary image showing a single coronary artery arising from the right coronary sinus (RCS). The right coronary artery (RCA) (red arrow) has a normal course. The left anterior descending artery (blue arrow) arises from the proximal RCA and then courses to the left anterior to the right ventricular outflow tract (RVOT). The left circumflex artery arises from the proximal RCA, and then it has a retroaortic course before it reaches the left atrioventricular groove. AO: aorta; LCS: left coronary sinus; NCS: none coronary sinus; LA: left atrium.