Left Ventricular Torsion An Expanding Role in the Analysis of Myocardial Dysfunction
Left Ventricular Torsion An Expanding Role in the Analysis of Myocardial Dysfunction
复制标题
DOI：
10.1016/j.jcmg.2009.03.001
复制
发表时间：
2009-05-01
影响因子：
14
通讯作者：
van Rossum, Albert C.
中科院分区：
文献类型：
--
作者：
Russel, Iris K.;Gotte, Marco J. W.;van Rossum, Albert C.
在左心室（LV）扭转期间，当从顶点到基部观察时，基部以总体顺时针方向旋转，并且顶点以逆时针方向旋转。左室扭转后迅速解旋，有助于心室充盈。由于左室扭转与纤维方向直接相关，因此可能反映了心功能的亚临床异常。最近，超声斑点跟踪被引入用于量化LV扭转。这种快速、广泛可用的技术可能有助于更快速地引入LV扭转作为检测心肌功能障碍的临床工具。然而，了解心脏的确切功能和结构是理解左室扭转价值的基础。在过去的20年里，以心脏磁共振为金标准，采用不同的测量方法研究了左心室扭转。多年来获得的结果有助于开发量化LV扭转的标准化方法，并在其可用作临床工具之前促进LV扭转的解释和价值。（美国科尔心脏病学杂志2009; 2：648-55）（C）2009年美国心脏病学会基金会
During left ventricular (LV) torsion, the base rotates in an overall clockwise direction and the apex rotates in a counterclockwise direction when viewed from apex to base. LV torsion is followed by rapid untwisting, which contributes to ventricular filling. Because LV torsion is directly related to fiber orientation, it might depict subclinical abnormalities in heart function. Recently, ultrasound speckle tracking was introduced for quantification of LV torsion. This fast, widely available technique may contribute to a more rapid introduction of LV torsion as a clinical tool for detection of myocardial dysfunction. However, knowledge of the exact function and structure of the heart is fundamental for understanding the value of LV torsion. LV torsion has been investigated with different measurement methods during the past 2 decades, using cardiac magnetic resonance as the gold standard. The results obtained over the years are helpful for developing a standardized method to quantify LV torsion and have facilitated the interpretation and value of LV torsion before it can be used as a clinical tool. (J Am Coll Cardiol Img 2009; 2: 648-55) (C) 2009 by the American College of Cardiology Foundation