Arterial Switch Procedure for D-Transposition of the Great Arteries: Quantitative Midterm Evaluation of Hemodynamic Changes with Cine MR Imaging and Phase-Shift Velocity Mapping—Initial Experience

Abstract

The anatomic situation after arterial switch repair tended to produce temporary stenoses in the primary pulmonary arterial branches, with significant changes in hemodynamics. These changes may affect the long-term outcome and go undetected with other imaging modalities.