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
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Physiological basis in the assessment of myocardial mechanics using speckle-tracking echocardiography 2D. Part I
TL;DR: This paper presents in more detail the methodology of speckle-tracking echocardiography, the characteristic abnormalities of cardiac mechanics presenting in different clinical entities, and the limitations related to given clinical and technical issues.
Journal ArticleDOI
Impact of long-axis function on cardiac surgical outcomes in patients with radiation-associated heart disease
Srisakul Chirakarnjanakorn,Zoran B. Popović,Willis Wu,Ahmad Masri,Nicholas G. Smedira,Bruce W. Lytle,Brian P. Griffin,Milind Y. Desai +7 more
TL;DR: In patients who have RACD and undergo cardiac surgery, LV-GLS does not sufficiently discriminate and is not independently predictive of long-term outcomes, however, in patients with a low EuroSCORE, abnormal LV-gLS was associated with higher mortality, compared with those with normal LV- GLS.
Journal ArticleDOI
HIV-infected Children in Malawi Have Decreased Performance on the 6-minute Walk Test With Preserved Cardiac Mechanics Regardless of Antiretroviral Treatment Status.
Amy E. Sims Sanyahumbi,Mina C. Hosseinipour,Danielle Guffey,Irving F. Hoffman,Peter N. Kazembe,Madeline McCrary,Charles G. Minard,Charles van der Horst,Craig Sable +8 more
TL;DR: Overall, ejection fraction, shortening fraction and strain measures between groups were similar, so cardiac strain did not detect cardiac dysfunction in this young population of HIV-infected and HIV-uninfected children.
Journal ArticleDOI
Disfunção sistólica ventricular esquerda detetada por speckle tracking em hipertensos com fração de ejeção preservada
Susana Gonçalves,Nuno Cortez-Dias,Ana Paiva Nunes,Adriana Belo,Inês Zimbarra Cabrita,Catarina Sousa,Fausto J. Pinto +6 more
TL;DR: A avaliacao da deformacao miocardica permitiu identificar o compromisso sistolico subclinico da funcao ventricular esquerda num grupo de hipertensos com fracao de ejecao preservada ou circunferencial.
Journal ArticleDOI
Changes in left ventricular strain parameters following pediatric heart transplantation.
Justin Godown,Debra A. Dodd,Michael Stanley,Corey Havens,Meng Xu,James C. Slaughter,David W. Bearl,Jonathan H. Soslow +7 more
TL;DR: Abnormal longitudinal strain parameters are present in the early post‐HTx period with a compensatory increase in circumferential strain, which normalize by 1 year post‐transplant and do not change over time in the absence of graft complications.
References
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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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