Investigating the shortcomings of the Flow Convergence Method for quantification of mitral regurgitation in a pulsatile in-vitro environment and with Computational Fluid Dynamics

Mitral regurgitation (MR) is one of the most common valvular heart conditions and caused by the retrograde flow of blood from the left ventricle (LV) into the left atrium (LA) through the mitral valve (MV). The frequency of the pump (ViVitro SuperPump, ViVitro Labs, Inc., Victoria, Canada) is adjusted to 80 bpm and the stroke volume of the pump is set to reach a left ventricular pressure of approximately 120 mmHg. The present work compares the measurement of regurgitation jet by ultrasound accomplished by three different physicians with three different systems.

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