Can left ventricular diastolic stiffness be measured noninvasively?

  title={Can left ventricular diastolic stiffness be measured noninvasively?},
  author={Paolo Marino and William James Little and Andrea Rossi and Enrico Barbieri and Maurizio Anselmi and Gianni Destro and Antonia Maria Prioli and Laura Lanzoni and Piero Zardini},
  journal={Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography},
  volume={15 9},
BACKGROUND A noninvasive estimation of left ventricular (LV) diastolic chamber stiffness (K(LV)) is still a challenge. Experimental data suggests that K(lv) can be obtained by using Doppler mitral flow deceleration time (DT) as the only variable: K(lv) = (70/[DT-20])(2) mm Hg/mL. We assessed the accuracy of this noninvasive estimate of K(lv) by comparing it with invasive measurement of K(lv) in intact patients with a wide range of LV size and function under varying loading conditions. METHODS… CONTINUE READING


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