Multimodality Imaging in Management of Adults with Dextro-Transposition of the Great Arteries Post Arterial Switch Operation

• Echo is an essential tool for monitoring long-term complications of D-TGA with ASO. • Multimodality imaging is complementary to echo in the assessment of complications. • 4D flow CMR can assess supravalvular PS post ASO. • Branch pulmonary arteries after LeCompte maneuver can be challenging to image.