双多普勒同步取样技术评价心脏功能及同步性的临床应用

摘要

Dual gate Doppler is a newly-developed technology in recent years, which can synchronously place two sampling volume. Based on its advantages,dual gate Doppler can not only measure indexes which reflect cardiac function more accurately than conventional Doppler,but also provide a more convenient method to evaluate the cardiac synchronization. And it can reflect the myocardial tissue motions and hemodynamic changes in the heart cavity timely,intuitively and fast,offer a new perspective to quantitatively estimate the coupling relations between wall mechanics and heart cavity fluid mechanics.This article aims to introduce the applications of dual gate Doppler in evaluating cardiac function and synchronization.%双多普勒同步取样技术是近年来出现的新技术；其可以在同一切面同步放置两个取样容积，不仅可以更准确地反映心脏功能，而且可以更简便地评价心脏同步性。同时，双多普勒技术可以实时、直观、快速地显示心肌组织运动与心腔内血流动力学的变化，为定量评价室壁运动力学与心腔内流体力学的耦联关系提供了新视角。本文就双多普勒技术在评价心脏功能及同步性等方面的应用作一综述。