نتایج جستجو برای: speckle tracking echocardiography
تعداد نتایج: 161615 فیلتر نتایج به سال:
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...
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...
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 ...
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...
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...
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...
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...
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...
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...
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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