Diagnosis of coronary artery anomalies using multidetector CT angiography

Congenital anomalies of the coronary arteries occur in 0.2– 1.2% of the general population (Angelini, 1989). The left main coronary artery (LMCA) originates rarely from the right sinus of Valsalva, or directly from the right coronary artery with an incidence of 0.15%. In 75% of cases the LMCA pass betweenthe aorta and pulmonary artery (Chaitman et al., 1976) (Image A). Patients with such anomaly can have sudden cardiac death during or after exercise.