Non-invasive Determination of Novel Aorto-ventricular Matching from Doppler Echocardiography
Aorto-ventricular matching (AVM), the ratio of aortic elastance (Ea) and left ventricular (LV) end-systolic elastance (Ees), provides a framework for analyzing the interaction between LV function and aortic impedance. In the optimal condition, LV elastance (the energy source) and aortic elastance (the load) are coupled to maximize the amount of energy transferred from the source to the load Conversely, mismatch between impaired LV function and increased aortic stiffness decrease efficiency of ventricular work transfer. The goal of this study was to propose, develop and validate a method to estimate A VM in humans from noninvasive single-beat parameters using Doppler echocardiography. This approach may broaden the clinical applicability of this useful parameter for assessing aortoventricular interaction and therapeutic response.
Mathematical modeling aorto-ventricular matching elastance
L.Zhong T.T.Le R.S.Tan D.N.Ghista
Department of Cardiology, National Heart Centre, Mistri Wing, Third Hospital Avenue, Singapore, 1687 Division of Engineering, Science and Technology, University of New South Wales Asia, Singapore
国际会议
武汉
英文
434-437
2007-07-06（万方平台首次上网日期，不代表论文的发表时间）