Abstract
Introduction: Pulmonary incompetence (PI) following repair of tetralogy of Fallot (TOF) results in progressive right ventricular (RV) enlargement and dysfunction. Cardiac magnetic resonance imaging quantitation of PI is reliable, highly reproducible, and is the reference standard imaging modality. The current recommendation is to measure flow velocity and volume perpendicular to the vessel and distal to valve leaflet tips on phase velocity encoding. Wed determined the effect of different phase contrast slice positions within the pulmonary root for quantitative analysis of PI.
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