Quantifying paravalvular leakage after transcatheter aortic valve replacement using particle image velocimetry

Given the prevalence and impact of Paravalvular Leakage, there is a critical need to study and mitigate this issue to improve patient outcomes. The experimental setup replicates the human left heart, featuring a Pulsatile Pump ViVitro, an em-tec flow meter, pressure taps, and a transparent acrylic test chamber housing a heart valve. The results of the experiments indicate that a wall jet forms during diastole, flowing back from the aortic side into the ventricular side.