Figure 3 - uploaded by Michele Girfoglio
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Pressure head (∆P ) -volume flow rate (P F ) curves (continuous line with circles) and analytical fitting (dashed line) based on eq. 11 for Heartmate 3 TM [53] pump at several pump speed values: ω = 3000 rpm (black), ω = 4000 rpm (red), ω = 5000 rpm (blue), ω = 6000 rpm (green), ω = 7000 rpm (cyan), and ω = 8000 rpm (magenta).
Source publication
Left ventricular assist devices (LVADs) are used to provide haemodynamic support to patients with critical cardiac failure. Severe complications can occur because of the modifications of the blood flow in the aortic region. In this work, the effect of a continuous flow LVAD device on the aortic flow is investigated by means of a non-intrusive reduc...
Contexts in source publication
Context 1
... that the aortic valve is closed during all the cardiac cycle, i.e. the cardiac flow rate is supplied by the LVAD device only and the ascending aorta section is treated as a wall. In Figure 3, the pressure head (∆P ) -volume flow rate (P F ) curves for the Heartmate 3 TM Left Ventricular Assist System [53] at several pump speed values ω are shown. The basic pump dynamics can, ...
Context 2
... K A , K B and K C are constants which depend on pump design. After some numerical experiments, we found that the coefficients given in Table 4 provide an acceptable fit as showed in Figure 3. We note that a better agreement could be obtained by considering more complex equations in order to take into account nonlinear effects [50]. ...
Context 3
... that the aortic valve is closed during all the cardiac cycle, i.e. the cardiac flow rate is supplied by the LVAD device only and the ascending aorta section is treated as a wall. In Figure 3, the pressure head (∆P ) -volume flow rate (P F ) curves for the Heartmate 3 TM Left Ventricular Assist System [53] at several pump speed values ω are shown. The basic pump dynamics can, ...
Context 4
... K A , K B and K C are constants which depend on pump design. After some numerical experiments, we found that the coefficients given in Table 4 provide an acceptable fit as showed in Figure 3. We note that a better agreement could be obtained by considering more complex equations in order to take into account nonlinear effects [50]. ...
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