Assessment of left ventricular dyssynchrony with real-time 3-dimensional echocardiography: Comparison with Doppler tissue Imaging
Assessment of left ventricular dyssynchrony with real-time 3-dimensional echocardiography: Comparison with Doppler tissue Imaging
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DOI：
10.1016/j.echo.2007.05.001
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发表时间：
2007-12-01
影响因子：
6.5
通讯作者：
Lang, Roberto M.
中科院分区：
文献类型：
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作者：
Takeuchi, Masaaki;Jacobs, Avrurn;Lang, Roberto M.
我们研究了实时三维（3D）超声心动图（RT 3DE）评价左室（LV）不同步性的有效性和可重复性，并将其结果与多普勒组织成像（DTI）指数进行了比较。对122例受试者进行了全容积RT 3DE数据集和心尖窗二维DTI。使用快速3D边界检测软件，半自动计算17段模型每个区域的最小收缩期容积时间（Tmsv）。然后计算几个不同步指数：Tmsv-16 SD，16个节段（不包括顶帽）的Tmsv的SD; Tmsv-12 SD，6个基底节段和6个中间节段的Tmsv的SD; Tmsv-6SD，6个基底节段的Tmsv的SD。将RT 3DE的这些非同步性指标与DTI测量的两个非同步性指标：收缩期峰值速度时间（TTPV）-12SD（12个LV节段收缩期峰值速度时间的SD）和时间轴交叉点时间（TTCO）-12SD（12个LV节段收缩期峰值速度时间的SD）进行比较。对122例患者中的117例患者的RT 3DE数据进行了定量分析。Tmsv-16 SD（35 +/- 34毫秒）明显长于Tmsv-12 SD（27 +/- 30毫秒，P
We studied the usefulness and reproducibility of realtime 3-dimensional (3D) echocardiography (RT3DE) for evaluating left ventricular (LV) dyssynchrony, and compared its results with Doppler tissue image (DTI) indices. Full-volume RT3DE data sets and 2-dimensional DTI from apical window were obtained in 122 participants. Using fast 3D border detection software, time to minimum systolic volume (Tmsv) was semiautomatically calculated in each region from a 17-segment model. Several dyssynchrony indices were then calculated: Tmsv-16SD, the SD of Tmsv in 16 of 17 segments, excluding the apical cap; Tmsv-12SD, the SD of Tmsv of 6 basal and 6 middle segments; and Tmsv-6SD, the SD of Tmsv of 6 basal segments. These dyssynchrony indices of RT3DE were then compared with two dyssynchrony indices measured by DTI: time to peak systolic velocity (TTPV)-12SD, the SD of time to peak systolic velocity of 12 LV segments; and time to cross over point of temporal axis (TTCO)-12SD, the SD of time to crossover point of temporal axis. RT3DE data was quantitatively analyzed in 117 of 122 patients. Tmsv-16SD (35 +/- 34 milliseconds) was significantly longer compared with Tmsv-12SD (27 +/- 30 milliseconds, P