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首页> 外文期刊>Journal of the American Society of Echocardiography: official publication of the American Society of Echocardiography >Three-dimensional-wall motion tracking: a new and faster tool for myocardial strain assessment: comparison with two-dimensional-wall motion tracking.
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Three-dimensional-wall motion tracking: a new and faster tool for myocardial strain assessment: comparison with two-dimensional-wall motion tracking.

机译：三维壁运动跟踪：一种新的，更快的心肌应变评估工具：与二维壁运动跟踪的比较。

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摘要

BACKGROUND: Two-dimensional (2D) wall motion-tracking echocardiography (WMT) is a useful method to measure myocardial strain, but it is very limited because acquisition and analysis are time consuming. Three-dimensional (3D) WMT is a new method that might improve diagnostic usefulness and reduce study times. The aims of this study were to compare results on 2D and 3D WMT and to compare the times for the acquisition and analysis of regional myocardial strain between the two methods. METHODS: Measurements of the radial and longitudinal strain of every left ventricular (LV) segment and the time for acquisition and analysis were obtained using 3D and 2D WMT. RESULTS: Thirty patients were enrolled (mean age, 57.2 +/- 19.6 years; 60% men). Three-dimensional WMT provided complete radial and longitudinal LV strain information, similar to 2D WMT (P = NS), but it was less time consuming: the times for acquisition and analysis were 14.0 +/- 1.9 minutes with 2D WMT and 5.1 +/- 1.1 minutes with 3D WMT (P < .001). Furthermore, in the same analysis, a greater number of segments could be analyzed using 3D WMT (72.4%) compared with 2D WMT (52.0%). CONCLUSIONS: Three-dimensional WMT provides a faster, more complete, and similar analysis to assess LV longitudinal and radial strain compared with 2D WMT. Thus, 3D WMT is a potential clinical bedside tool for quantifying myocardial strain.
机译：背景：二维（2D）壁运动跟踪超声心动图（WMT）是测量心肌应变的一种有用方法，但由于获取和分析非常耗时，因此非常受限制。三维（3D）WMT是一种新方法，可以提高诊断的实用性并减少研究时间。这项研究的目的是比较2D和3D WMT的结果，并比较两种方法之间获取和分析局部心肌劳损的时间。方法：使用3D和2D WMT获得每个左心室（LV）段的径向和纵向应变的测量值以及采集和分析的时间。结果：30名患者入组（平均年龄，57.2 +/- 19.6岁; 60％的男性）。三维WMT提供了完整的径向和纵向LV应变信息，类似于2D WMT（P = NS），但耗时较少：使用2D WMT和5.1 + /时，采集和分析时间为14.0 +/- 1.9分钟-使用3D WMT进行1.1分钟（P <.001）。此外，在同一分析中，与2D WMT（52.0％）相比，使用3D WMT（72.4％）可以分析更多的片段。结论：与2D WMT相比，三维WMT提供了更快，更完整和相似的分析来评估LV的纵向和径向应变。因此，3D WMT是量化心肌张力的潜在临床床头工具。

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