Evaluation of Right Ventricular Myocardial Mechanics Using Velocity Vector Imaging of Cardiac MRI Cine Images in Transposition of the Great Arteries Following Atrial and Arterial Switch Operations

40 patients with transposition of the great arteries who had a clinically ordered cardiac MRI, including 20 post-atrial switch (75% male, 28.7 ± 1.8 years) and 20 post-arterial switch (60% male, 17.7 ± 1.9 years).

Atrial switch operation

Arterial switch operation

Right and left ventricle deformation parameters (longitudinal and circumferential strain and strain rate) using Velocity Vector Imaging of cardiac MRI cine imagessurrogate