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Figure 8b. Childhood surgical repair of a common arterial trunk at ECG-gated CT performed in a 32-year-old woman because of suspicion of a coronary artery anomaly. (a) Thin-section axial CT scan shows a patch (arrow) between the common arterial trunk (CAT) and the right ventricle (RV). RA = right atrium. (b) Thin-section axial CT scan demonstrates a graft implanted from the right ventricle to the pulmonary trunk. The connection to the ascending aorta (aA) was closed with a patch (arrow). The origin and course of the coronary arteries (not shown) were normal. dA = descending aorta, rPA = right pulmonary artery.