Fig. 1.

Computed tomography coronary angiography images (Siemens Sensation 64, collimation 64 × 0.6 at 900 mAs and 120 kV). Three-dimensional reconstruction (a) and transverse images (b, c, d) showing a normal right coronary artery (white arrows) and an anomalous circumflex originating from the right coronary sinus and following a retro-aortic course (black arrowheads). A second anomalous coronary artery from the right coronary sinus follows an interarterial course between aorta and pulmonary trunk (white arrowheads). A small coronary artery originates from the left coronary sinus and follows an anterolateral course (black arrows). AO aorta, LA left atrium