Abstract
Dextro-transposition of the great arteries (D-TGA) is the second commonest cyanotic heart defect, accounting for 5% of all congenital heart defects. The diagnosis of D-TGA is generally made by two-dimensional echocardiography. However, given the shortcomings in transthoracic echocardiography to delineate the extent of extracardiac vascular structures and coronary arteries in young infants, cardiac CT is increasingly used both in preoperative and in postoperative evaluation of D-TGA. The common indications for cardiac CT in D-TGA patients include evaluation of coronary arteries, aortic arch, neoaortic root, and pulmonary arteries after arterial switch operation with LeCompte maneuver. The preferred cardiac CT technique is prospective gated cardiac CT using modern dual-source multidetector CT scanners. After arterial switch operation, biventricular contrast injection or triphasic contrast injection technique is used to delineate both right-sided and left-sided structures (pulmonary arteries, coronary arteries, and aortic root).
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Schoeneberg, L., Adebo, D.A. (2021). Dextro-Transposition of the Great Arteries . In: Adebo, D.A. (eds) Pediatric Cardiac CT in Congenital Heart Disease. Springer, Cham. https://doi.org/10.1007/978-3-030-74822-7_18
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DOI: https://doi.org/10.1007/978-3-030-74822-7_18
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