Infant-type anomalous origin of the left coronary artery from the main pulmonary artery diagnosed with sixty-four multislice computed tomography.

摘要

A 5-month-old girl was referred to the paediatric cardiology department for dyspnea, pallor, and failure to thrive. The onset of symptoms occurred about 8 weeks after birth. Her electrocardiogram showed ischemic change.Transthoracic echocardiography showed global hypoki-nesia with decreased left-ventricular ejection fraction (30%). The origin of the right coronary artery (RCA) was well visualized, but that of the left coronary artery (LCA) was not. Anomalous origin of the LCA was then suspected. A 64-multislice computed tomography (MSCT; VCT General Electric HealthCare, Milwaukee, WI) scan was performed using retrospective electrocardiographic (ECG)-gating after intravenous administration of 12 ml iodinated contrast medium (Omnipaque 350; Amersham Health, Cork, Ireland) at a rate of 2.5 ml/s.