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Computed tomographic angiography images taken after surgical reintervention, which are shown in axial (a) and oblique sagittal (b) planes, along with 3D volume-rendered reconstructions viewed from superior (c) and anterior-leftward (d) perspectives. The main pulmonary artery stump has been divided and the left pulmonary artery is now widely patent. BTS: Blalock–Taussig shunt; RPA: Right pulmonary artery; LPA: Left pulmonary artery
