Transposition of the Great Arteries
Transposition of the great arteries (TGA) is the second most common cyanotic congenital heart disease. It is characterized by a ventriculo-arterial discordance with the aorta arising from the right ventricle and the pulmonary artery arising from the left ventricle. For initial diagnosis echocardiography is used. The postoperative imaging protocol strongly depends on the type of surgical repair, of which each has its specific long-term complications. CMR provides the most detailed information in morphology, function, and tissue characterization and is routinely used in follow-up examinations. Modern CMR imaging sequences like 4D PC flow measurement and T1 mapping are under evaluation.
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