Doppler Echocardiography in Infancy and Childhood pp 189-202 | Cite as
Transposition of the Great Arteries
Abstract
Transposition of the great arteries is a cardiac malformation, which is characterized by ventriculoarterial discordance. It is easily diagnosed by 2D echo in the precordial and subcostal views, confirming origin of the aorta from the morphologic right and of the pulmonary artery from the morphologic left ventricle. In the majority of cases, transposition of the great arteries is associated with concordant connections of the atria and ventricles. Colour Doppler echocardiography in neonates is essential to visualize shunting between both circulations across the atrial septum and the ductus arteriosus. It is also important in the search for ventricular septal defects, obstruction of the left and right ventricular outflow tract as well as possible obstruction of the aortic arch. PW and CW Doppler can be applied to document flow across an associated VSD, to quantify gradients across the outflow tracts and to assess flow across the aortic arch and ductus arteriosus.
Keywords
Ventriculoarterial discordance Atrioventricular discordance Transposition of the great arteries Congenitally corrected transpositionSupplementary material
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