Prenatal Diagnosis of Distal Aortopulmonary Window With Type A Aortic Arch Interruption With 4-Dimensional Spatiotemporal Image Correlation Rendering
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Four-dimensional spatiotemporal image correlation technology enables evaluation of the cardiac structures and their vascular connections in the fetus in a less operator-dependent manner and permits offline analysis of the volume datasets.1 This technology has been reported to have incremental benefit over conventional imaging for evaluation of the vascular structures like aortic arch and pulmonary arteries in the fetus.2 There are few published reports of the association of aortopulmonary window with interruption of the aortic arch in the fetus.3 Herewith, we are reporting the utility of 4-dimensional spatiotemporal image correlation imaging in diagnosing the rare association of a distal aortopulmonary window with type A aortic arch interruption in a fetus.
A 29-year-old primigravida was referred for fetal echocardiography at 34 weeks gestation in view of suspicion of coarctation of aorta on screening. Fetal echocardiography was performed with the Voluson E10 equipment with 4-dimensional volume probes including the matrix array transducer (GE Healthcare, Zipf, Austria). The …