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Updated: Oct 26, 2025

Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation
Published on: October 20, 2016
3-Dimensional Speckle-Tracking Echocardiography-Derived Interventricular Activation Imaging in a Patient With
Tomoko Ishizu1, Yoshihiro Seo2, Yuki Komatsu1
1Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.
Abstract:
Using 3-dimensional speckle-tracking echocardiography-derived activation imaging system, we visualized interventricular dyssynchrony in a repaired tetralogy of Fallot case with pacing-induced left ventricular dysfunction. The activation imaging system visualized interventricular dyssynchrony and resynchronization after cardiac resynchronization therapy and may be useful to assess electromechanical disturbance in complicated congenital heart diseases. (Level of Difficulty: Intermediate.).
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