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Three-dimensional-wall motion tracking: a new and faster tool for myocardial strain assessment: comparison with two-dimensional-wall motion tracking.

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TLDR
Three-dimensional WMT provides a faster, more complete, and similar analysis to assess LV longitudinal and radial strain compared with 2D WMT, and is a potential clinical bedside tool for quantifying myocardial strain.
Abstract
Background Two-dimensional (2D) wall motion–tracking echocardiography (WMT) is a useful method to measure myocardial strain, but it is very limited because acquisition and analysis are time consuming. Three-dimensional (3D) WMT is a new method that might improve diagnostic usefulness and reduce study times. The aims of this study were to compare results on 2D and 3D WMT and to compare the times for the acquisition and analysis of regional myocardial strain between the two methods. Methods Measurements of the radial and longitudinal strain of every left ventricular (LV) segment and the time for acquisition and analysis were obtained using 3D and 2D WMT. Results Thirty patients were enrolled (mean age, 57.2 ± 19.6 years; 60% men). Three-dimensional WMT provided complete radial and longitudinal LV strain information, similar to 2D WMT ( P = NS), but it was less time consuming: the times for acquisition and analysis were 14.0 ± 1.9 minutes with 2D WMT and 5.1 ± 1.1 minutes with 3D WMT ( P Conclusions Three-dimensional WMT provides a faster, more complete, and similar analysis to assess LV longitudinal and radial strain compared with 2D WMT. Thus, 3D WMT is a potential clinical bedside tool for quantifying myocardial strain.

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Journal ArticleDOI

Comprehensive Evaluation of Left Ventricular Strain Using Speckle Tracking Echocardiography in Normal Adults: Comparison of Three-Dimensional and Two-Dimensional Approaches

TL;DR: 3DT is a simple, feasible, and reproducible method to measure longitudinal, circumferential, and radial strains, and the discordant results between 3DT and 2DT may be explained by the 3D cardiac motion that has been ignored in current 2DT.
References
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Journal ArticleDOI

Standardized Myocardial Segmentation and Nomenclature for Tomographic Imaging of the Heart A Statement for Healthcare Professionals From the Cardiac Imaging Committee of the Council on Clinical Cardiology of the American Heart Association

TL;DR: Attempts to standardize options for all cardiac imaging modalities should be based on the sound principles that have evolved from cardiac anatomy and clinical needs, and selection of standardized methods must bebased on the following criteria.
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Recommendations for chamber quantification

TL;DR: This document reviews the technical aspects on how to perform quantitative chamber measurements of morphology and function, which is a component of every complete echocardiographic examination.
Journal ArticleDOI

Standardized Myocardial Segmentation and Nomenclature for Tomographic Imaging of the Heart

TL;DR: A remarkable committee was convened: The American Heart Association Writing Group on Myocardial Segmentation and Registration for Cardiac Imaging came to an agreement upon all aspects of nomenclature and anatomic descriptions of the heart.
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