Accuracy of measurement of left ventricular volume and election fraction by now real-time three-dimensional echocardiography in patients with wall motion abnormalities secondary to myocardial infarction
Accuracy of measurement of left ventricular volume and election fraction by now real-time three-dimensional echocardiography in patients with wall motion abnormalities secondary to myocardial infarction
复制标题
DOI：
10.1016/j.amjcard.2004.05.015
复制
发表时间：
2004-09-01
影响因子：
2.8
通讯作者：
Yoshikawa, J
中科院分区：
文献类型：
--
作者：
Arai, K;Hozumi, T;Yoshikawa, J
三维超声心动图是测量左室容积的理想工具，因为不需要对左室形状进行几何假设。新的实时三维超声心动图（RUDE）的引入使得快速获取具有良好图像质量的三维数据集成为可能。本研究的目的是通过定量门控单光子发射计算机断层扫描（QGSPECT）作为参考标准，检验RT3DE测量壁运动异常患者左室体积和射血分数的准确性。研究人群由连续25例壁运动异常患者组成，他们通过二维超声心动图和QGSPECT测量左室容积。采用平均旋转法离线测量RT3DE左室容积和射血分数。25例患者中有23例（92%）可以用RT3DE测量三维体积。在测量舒张末期容积和收缩末期容积时，RUDE与QGSPECT相关性良好（r = 0.97，平均差3.4 ml; r = 0.98，平均差2.0 ml），二维超声心动图也与QGSPECT相关，但低估了左室容积（r = 0.98，平均差21.1 ml; r = 0.98，平均差15.6 ml）。RT3DE测定的射血分数与QGSPECT较二维超声心动图吻合较好（r = 0.92，平均差-0.2%;r = 0.89，平均差-2.7%）。对于壁运动异常的患者，RUDE可以方便准确地估计左室容积和射血分数。(C) 2004年由摘录医学公司。
Three-dimensional echocardiography is an ideal tool for the measurement of left ventricular (LV) volume because no geometric assumptions about LV shape are needed. The introduction of new real-time 3-dimensional echocardiography (RUDE) has allowed rapid acquisition of a 3-dimensional dataset with good image quality. The purpose of this study was to examine the accuracy of RT3DE for the measurement of LV volume and ejection fraction in patients with wall motion abnormalities by using quantitative gated single-photon emission computed tomography (QGSPECT) as a reference standard. The study population consisted of 25 consecutive patients with wall motion abnormalities who underwent LV volume measurement by 2-dimensional echocardiography and by QGSPECT. LV volume and ejection fraction by RT3DE were measured offline by using the average rotation method. In 23 of 25 patients (92%), it was possible to measure 3-dimensional volume with RT3DE. RUDE correlated well with QGSPECT in the measurement of end-diastolic volume and end-systolic volume (r = 0.97, mean difference 3.4 ml; r = 0.98, mean difference 2.0 ml, respectively), 2-dimensional echocardiography also correlated with QGSPECT but underestimated LV volume (r = 0.98, mean difference 21.1 ml; r = 0.98, mean difference 15.6 ml, respectively). Ejection fraction obtained by RT3DE had better agreement with that obtained by QGSPECT than that obtained by 2-dimensional echocardiography (r = 0.92, mean difference -0.2%; r = 0.89, mean difference -2.7%, respectively). RUDE allows convenient and accurate estimation of LV volume and ejection fraction in patients with wall motion abnormalities. (C) 2004 by Excerpta Medica, Inc.