Figure legends
Figure 1: Invasive monitoring shows three discontinuous pressure changes
in LV diastole: the lowest or minimum pressure in early diastole, the
second before the ventricular A wave, and the third at the end of
diastole. LAP also changes during diastole. LVP=Left ventricular
pressure, LAP=left atrial pressure, MLAP=mean left atrial pressure,
LVFPmin=minimum left ventricular filling pressure, Pre-LV A wave
pressure=pressure of ventricular A wave.
Figure 2: A. The LV stiffness constant, defined as the slope of
pressure-volume relationship. B. Diastolic wall strain (DWS) = (LV
posterior wall thickness at end-systole - LV posterior wall thickness at
end-diastole) /(LV posterior wall thickness at end-systole). C.
Intrinsic velocity propagation of myocardial stretch (iVP). D. The
time-velocity integral (TVI) measurements of pulmonary venous and
transmitral flows. The figure shows the correlation between
Echocardiography-derived indices and the invasive LV stiffness constant.