Patients with corrected atrioventricular septal defect demonstrate regionally disturbed left ventricular inflow patterns with decreased LV ejection efficiency : a quantitative evaluation by 4DFlow MRI and particle tracing
Emmeline Calkoen 1 , Patrick de Koning 2 , Rob van der Geest 2 , Albert de Roos 2 , Arno Roest 1 , and Jos Westenberg 2
Pediatric Cardiology, LUMC, Leiden,
LUMC, Leiden, Netherlands
We aimed to quantitatively describe left ventricular
(LV) blood flow patterns and evaluate ejection
efficiency using 4-dimensional velocity-encoded cardiac
magnetic resonance imaging (4DFlow MRI) and particle
tracing in healthy volunteers and corrected AVSD
patients. Patients presented more lateral and apical
inflow, which resulted in decreased direct flow and
increased retained flow percentage for apical and
lateral LV cavity segments, which may contribute to a
decreased cardiac pumping efficiency.
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