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Updated: May 10, 2026

Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation
Published on: October 20, 2016
Evaluation of left ventricular mechanical dyssynchrony in chronic heart failure patients by two-dimensional speckle
Feng-Xia Jiang1, Rui-Qiang Guo, Jin-Ling Chen
1Department of Ultrasound, Renmin Hospital of Wuhan University, Wuhan, China.
Abstract:
The purpose of this study was to evaluate left ventricular mechanical dyssynchrony (LVMD) in chronic heart failure (CHF) patients using two-dimensional speckle tracking imaging (2D-STI), and also to compare the usefulness of three patterns of myocardial deformation in mechanical dyssynchrony assessment. Furthermore, the relationships between left ventricular ejection fraction (LVEF), QRS duration (QRSd), and LVMD were explored. In total, 78 patients and 60 healthy individuals (group 3) were enrolled. The patients were classified into two subgroups: LVEF≤35% (group 1), 35%
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