Myocardial strain measurement with 2-dimensional speckle-tracking echocardiography: definition of normal range.
Thomas H. Marwick,Rodel Leano,Joseph Brown,Jing Ping Sun,Rainer Hoffmann,Peter Lysyansky,Michael Becker,James D. Thomas +7 more
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TLDR
This multicenter study of nearly 250 volunteers without evidence of cardiovascular disease showed an average LV peak systolic strain of -18.6 +/- 0.1% and there was significant segmental variation of regional strain to necessitate the use of site-specific normal ranges.Abstract:
The interpretation of wall motion is an important component of echocardiography but remains a source of variation between observers. It has been believed that automated quantification of left ventricular (LV) systolic function by measurement of LV systolic strain from speckle-tracking echocardiography might be helpful. This multicenter study of nearly 250 volunteers without evidence of cardiovascular disease showed an average LV peak systolic strain of −18.6 ± 0.1%. Although strain was influenced by weight, blood pressure, and heart rate, these features accounted for only 16% of variance. However, there was significant segmental variation of regional strain to necessitate the use of site-specific normal ranges.read more
Citations
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Journal ArticleDOI
Strain Echocardiography in Patients with Diastolic Dysfunction and Preserved Ejection Fraction: Are We Ready?
TL;DR: O guideline ASE 2016 of avaliação da função diastólica do ventrículo esquerdo abre possibilidades para o emprego de novas tecnologias that auxiliam no processo diagnóstico.
Dissertation
Contemporary Echocardiography In Non-ST Elevation Myocardial Infarction
TL;DR: In this article, the usefulness of echocardiography for determining systolic and diastolic dysfunction post NSTEMI and compare the results to coronary angiography was explored.
Journal ArticleDOI
Analysis of left ventricular rotational deformation by 2D speckle tracking echocardiography: a feasibility study in athletes
Phillipp Hofrichter,Andreas Hagendorff,Ulrich Laufs,Sven Fikenzer,Pierre Hepp,Robert Percy Marshall,Bhupendar Tayal,Stephan Stöbe +7 more
TL;DR: In this paper, 2D speckle tracking echocardiography (2DSTE) is established to analyse left ventricular (LV) longitudinal function in parasternal short axis views.
Journal ArticleDOI
Global longitudinal strain before cardiac surgery: Improving feasibility, reproducibility, and variability
Katrine Aagaard Myhr,Frederik H. G. Pedersen,Charlotte Kristensen,Lars Køber,Christian Hassager,Rasmus Mogelvang +5 more
TL;DR: It is important to evaluate the feasibility, reproducibility, and variation of GLS in this selection of patients, where poor image quality and nontraceable segments are frequent.
Proceedings ArticleDOI
A novel measure to express tracking quality in ultrasound block matching
TL;DR: In this article, the authors used the normalized cross-correlation coefficient (C cc ) and a measure of the amount of edges inside the kernel detected using a canny filter and counted on a pixel-by-pixel basis.
References
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Journal ArticleDOI
Two-dimensional strain-a novel software for real-time quantitative echocardiographic assessment of myocardial function.
Marina Leitman,P. Lysyansky,Stanislav Sidenko,Vladimir Shir,Eli Peleg,Michal Binenbaum,Edo Kaluski,Ricardo Krakover,Zvi Vered +8 more
TL;DR: In this paper, the authors assess the feasibility of 2D strain, a software for real-time quantitative echocardiographic assessment of myocardial function, which is based on the estimation that a discrete set of tissue velocities are present per each of many small elements on the ultrasound image.
Journal ArticleDOI
Quantitative assessment of intrinsic regional myocardial deformation by Doppler strain rate echocardiography in humans. Validation against three-dimensional tagged magnetic resonance imaging
TL;DR: The present study demonstrates the ability of Doppler echocardiography to measure myocardial strains in a clinical setting and may represent a new powerful method for quantifying left ventricular function noninvasively in humans.
Journal ArticleDOI
Can natural strain and strain rate quantify regional myocardial deformation? A study in healthy subjects
Mirosław Kowalski,Tomasz Kukulski,Fadi Jamal,Jan D'hooge,Frank Weidemann,Frank Rademakers,Bart Bijnens,Liv Hatle,George R. Sutherland +8 more
TL;DR: SR/epsilon imaging appears to be a robust technique for quantifying regional myocardial deformation, and values describing radial deformation were higher than the corresponding SR/ep silon values obtained for longitudinal deformation.
Journal ArticleDOI
Noninvasive quantification of regional myocardial function using Doppler-derived velocity, displacement, strain rate, and strain in healthy volunteers: effects of aging
Jing Ping Sun,Zoran B. Popović,Neil L. Greenberg,Xiao Fang Xu,Craig R. Asher,William J. Stewart,James D. Thomas +6 more
TL;DR: Although myocardial velocities and strain rate showed significant dependence on age, displacement and peak systolic strain measures were less affected, and Doppler tissue echocardiography measurements showed a strong dependence on wall segment position.
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