Usefulness of New Diastolic Strain and Strain Rate Indexes for the Estimation of Left Ventricular Filling Pressure

Tissue Doppler indexes of left ventricular (LV) filling pressure are prone to angulation errors and tethering and are less reliable in patients with preserved LV ejection fraction and indeterminate early peak transmitral diastolic flow (E)/mitral early diastolic velocity (Ea) (8