Progress of the assessment of cardiac function by three dimensional speckle-tracking echocardiography
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摘要: 三维超声斑点追踪技术(3D-STE)是一项评估心肌功能的新技术。除左室射血分数外,3D-STE还能评价各种心肌功能,包括收缩和舒张功能,旋转和扭转及同步运动等,期可靠性和重复性已通过大量的临床研究得到验证。研究表明,3D-STE优于2D-STE,且3D-STE还增加了新的应变检测指标,能够更准确地检测左室整体和局部心肌功能。现将近年3D-STE在心脏功能方面的研究进展及局限性综述如下。Abstract: Three dimensional speckle-tracking echocardiography(3D-STE) is a new technology to evaluate cardiac function.Beyond analysis solely of left ventricular ejection fraction,STE allows the assessment of various myocardial function,including systolic and diastolic function,twist and rotation,and dyssynchrony.Through experimental studies and clinical investigations,the reliability and feasibility of 3D-STE-derived data have been validated,and the advantages of 3D-STE over 2D-STE have been revealed.In addition,3D-STE provides novel deformation parameters(ie,3D-strain) that have the potential for more accurate assessment of overall and regional myocardial function.In this review,we focus on the progress of the assessment of various myocardial function by3D-STE and limitions of 3D-STE.
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Key words:
- three dimensional echocardiography /
- speckle-tracking /
- cardiac /
- function
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