Cardiac CT in an aberrant right coronary artery.

An 18-year-old man experienced acute chest pain. Transthoracic echocardiography was normal. ECG showed anterior ST-depression and posterior ST-elevation, and the troponin-T test was positive. Therefore the differential diagnosis included a myocardial ischaemic event. Catheter angiography ruled out coronary artery disease but detected an anomalous origin of the right coronary artery at the upper left sinus of Valsalva. Contrast-enhanced cardiac CT was subsequently performed (figure 1), with panel A (plus video 1) showing an angulated transverse reformation and panel B (plus video 2) a coronal reformation. The …