نتایج جستجو برای: speckle tracking echocardiography

تعداد نتایج: 161615  

Journal: :archives of cardiovascular imaging 0
hoorak poorzand department of cardiology, atherosclerosis prevention research center, imam reza hospital, faculty of medicine, mashhad university of medical sciences, mashhad, ir iran seyedeh zahra mirfeizi rheumatic diseases research center, faculty of medicine, mashhad university of medical sciences, mashhad, ir iran aida javanbakht atherosclerosis prevention research center, imam reza hospital, faculty of medicine, mashhad university of medical sciences, mashhad, ir iran; atherosclerosis prevention research center, imam reza hospital, faculty of medicine, mashhad university of medical sciences, mashhad, ir iran. tel/fax: +98-5138544504 hedieh alimi department of cardiology, atherosclerosis prevention research center, imam reza hospital, faculty of medicine, mashhad university of medical sciences, mashhad, ir iran

conclusions silent ventricular systolic dysfunction was more common in the patients with sle than in the control group. newer echocardiographic techniques such as two-dimensional ste provide an earlier chance for the detection of subclinical lv systolic dysfunction. our findings were independent of the traditional risk factors. results the mean duration of sle was 5.5 ± 3.4 years in our patient...

Journal: :Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology 2014
Zoltan Bakos Ellen Ostenfeld Hanna Markstad Anna Werther-Evaldsson Anders Roijer Hakan Arheden Marcus Carlsson Rasmus Borgquist

AIMS A cut-off of 9.8% maximum speckle-tracking radial strain in the segment with the latest mechanical delay has been proposed as predictive for selecting the best left ventricular lead placement for positive response on cardiac resynchronization therapy (CRT). However, pacing transmural scar should be avoided, and the purpose of this study was to evaluate the ability of echocardiographic radi...

Journal: :Journal of cardiovascular medicine 2016
Matteo Cameli Marco M Ciccone Maria Maiello Pietro A Modesti Maria L Muiesan Pietro Scicchitano Salvatore Novo Pasquale Palmiero Pier S Saba Roberto Pedrinelli

Speckle tracking echocardiography (STE) is an imaging technique applied to the analysis of left atrial function. STE provides a non-Doppler, angle-independent and objective quantification of left atrial myocardial deformation. Data regarding feasibility, accuracy and clinical applications of left atrial strain are rapidly gathering. This review describes the fundamental concepts of left atrial ...

Journal: :Innovative biosystems and bioengineering 2021

Background. Recent studies show that cardiovascular diseases, including coronary heart disease, are the leading causes of death and one main factors disability worldwide. The detection cases this type disease over past 30 years has increased from 271 million to 523 number deaths – 12.1 18.6 million. Cardiovascular diseases cause among population Ukraine and, according indicator, country remains...

2015
Zainab Raissuni Morgane Evin Elie Mousseaux Phillipe Cluzel Nadjia Kachenoura Alban Redheuil

Background Left atrial (LA) structural and functional changes are determinant steps on the pathway toward heart failure with preserved ejection fraction in hypertensive (HT) patients. Most LA studies are based on LA volumes evaluation in CMR and echocardiography or on echocardiographic speckle tracking estimation. Since LA functional evaluation by CMR is now emerging we aimed at 1) evaluating L...

Journal: :American journal of physiology. Heart and circulatory physiology 2016
Geir Olav Dahle Lodve Stangeland Christian Arvei Moen Pirjo-Riitta Salminen Rune Haaverstad Knut Matre Ketil Grong

Noninvasive measurements of myocardial strain and strain rate by speckle tracking echocardiography correlate to cardiac contractile state but also to load, which may weaken their value as indices of inotropy. In a porcine model, we investigated the influence of acute dynamic preload reductions on left ventricular strain and strain rate and their relation to the pressure-conductance catheter-der...

Journal: :Ultrasonics 2000
L N Bohs B J Geiman M E Anderson S C Gebhart G E Trahey

Speckle tracking methods overcome the major limitations of current Doppler methods for flow imaging and quantification: angle dependence and aliasing. In this paper, we review the development of speckle tracking, with particular attention to the advantages and limitations of two-dimensional algorithms that use a single transducer aperture. Ensemble tracking, a recent speckle tracking method bas...

2013
Joachim G Eichhorn Sebastian Buss Angela Foell Astrid Helling Daniel Robbers-Visser E Pieterman Sjoerd Bossers Dirk Lossnitzer Matthias Gorenflo Willem A Helbing

Background Similar to speckle tracking echocardiography cardiac MR (CMR) feature tracking imaging (FTI) uses a 2-dimensional deforming analysis of the myocardium which allows quantitative evaluation of myocardial motion and contractility. This technique might provide important additional information in children, including those with congenital heart disease (CHD). Until now, there are no refere...

2012
Thomas Bagger Erik Sloth Carl-Johan Jakobsen

Background. Transthoracic ultrasonography of the heart is valuable in monitoring and treatment of critically ill patients. Speckle tracking ultrasound (STU) has proven valid in estimating left ventricular systolic deformation. The aims of the study were to compare conventional and automated STU and to determine whether left ventricular systolic deformation could be estimated from one single ima...

2018
Juan Lacalzada-Almeida María Manuela Izquierdo-Gómez Carima Belleyo-Belkasem Patricia Barrio-Martínez Javier García-Niebla Roberto Elosua Alejandro Jiménez-Sosa Luis Alberto Escobar-Robledo Antonio Bayés de Luna

BACKGROUND To evaluate the possibility of left atrial (LA) remodeling using speckle tracking echocardiography (STE) in patients with interatrial block (IAB). METHODS We performed a cross-sectional study with three groups of patients: 56 without IAB, 21 with partial IAB (pIAB), and 22 with advanced IAB (aIAB). Transthoracic echocardiographic (TTE) STE was performed and clinical and echocardiog...

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