Second Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi, Kitakyushu, 807-8555, Japan.
Department of Cardiology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan.
Cardiovasc Ultrasound. 2020 Jun 26;18(1):23. doi: 10.1186/s12947-020-00204-3.
Three-dimensional (3D) left ventricular (LV) myocardial strain measurements using transthoracic 3D echocardiography speckle tracking analysis have several advantages over two-dimensional (2D) LV strain measurements, because 3D strain values are derived from the entire LV myocardium, yielding more accurate estimates of global and regional LV function. In this review article, we summarize the current status of 3D LV myocardial strain. Specifically, we describe how 3D LV strain analysis is performed. Next, we compare characteristics of 2D and 3D strain, and we explain validation of 3D strain measurements, feasibility and measurement differences between 2D and 3D strain, reference values of 3D strain, and its applications in several clinical scenarios. In some parts of this review, we used a meta-analysis to draw reliable conclusions. We also describe the added value of 3D over 2D strain in several specific pathologies and prognoses. Finally, we discuss novel techniques using 3D strain and suggest its future directions.
标题：三维（3D）左心室（LV）心肌应变测量：经胸超声心动图斑点追踪分析的现状
摘要：经胸超声心动图斑点追踪分析的三维（3D）左心室（LV）心肌应变测量与二维（2D）LV 应变测量相比具有许多优势，因为 3D 应变值源自整个 LV 心肌，从而对 LV 整体和局部功能做出更准确的估计。在这篇综述文章中，我们总结了 3D LV 心肌应变的现状。具体来说，我们描述了如何进行 3D LV 应变分析。接下来，我们比较了 2D 和 3D 应变的特点，并解释了 3D 应变测量的验证、2D 和 3D 应变的可行性和测量差异、3D 应变的参考值及其在几种临床情况下的应用。在本综述的某些部分，我们使用荟萃分析得出了可靠的结论。我们还描述了 3D 应变在几种特定病理和预后中的附加价值。最后，我们讨论了使用 3D 应变的新技术，并提出了其未来方向。
关键词：左心室心肌应变；超声心动图；斑点追踪分析；三维应变；二维应变
