Role of mitral annulus diastolic geometry on intraventricular filling dynamics

...The results support the hypothesis that a D-shaped mitral annulus reduces dissipative energy losses in ventricular filling during diastole, and in turn suggests that a symmetric stent design does not provide lower filling efficiency than an equivalent asymmetric design. ...fluctuations were imposed in a fluid-filled chamber housing the LV physical model using a programmable piston pump (Superpump, Vivitro Systems; British Columbia, Canada). The pressure fluctuations resulted in the deformation of the LV model, driving flow through ...

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