نتایج جستجو برای: speckle tracking echocardiography

تعداد نتایج: 161615  

Journal: :Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine 2016
Guo-Qing Du Ming-Chon Hsiung Yan Wu Shao-Hui Qu Jeng Wei Wei-Hsian Yin Jia-Wei Tian

OBJECTIVES This study assessed the use of 3-dimensional (3D) speckle-tracking echocardiography for noninvasive monitoring and diagnosis of acute rejection in heart transplant recipients. METHODS Fifteen heart transplant recipients underwent 32 endomyocardial biopsies; echocardiography was performed within 3 hours before biopsy. Twenty-four biopsies (acute rejection-negative group) showed grad...

2015
Noha Hassanin

Objective: Assessment of left atrium (LA) deformation by 2-Dimensional Speckle Strain Imaging (2DSI) has been recently proposed as an alternative method of exploring LA function. The purpose of this study was to assess the relationship of LA function, particularly reservoir function, with LA structural remodeling related to left ventricular hypertrophy (LVH) in patients with hypertension (HTN) ...

Journal: :research in cardiovascular medicine 0
maryam shojaeifard echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran mohammadali sadr-ameli cardiac electrophysiology research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran; cardiac electrophysiology research center, rajaie cardiovascular medical and research center, vali-asr ave., niyayesh blvd., p. o. box: 1996911151, tehran, ir iran. tel: +98-2123923017, fax: +98-2122663213 sadaf sadr-ameli medical engineering faculty, department of medical engineering, sciences and research branch, islamic azad university, tehran, ir iran mona heidarali cardiac electrophysiology research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran monireh soltani rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran behshid ghadrdoost rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran

conclusions echocardiography and 2d speckle tracking strain imaging shows improvements in left ventricular deformation indices in atrioventricular reentrant tachycardia (avrt) and atrioventricular nodal reentrant tachycardia (avnrt) patients for the mean systolic strain and strain rate at 24 hours and the three-month follow-up. in spite of the normal lvef, even during sinus rhythm, deformation ...

2014
Tudor Trache Stephan Stöbe Adrienn Tarr Dietrich Pfeiffer Andreas Hagendorff

Comparison of 3D and 2D speckle tracking performed on standard 2D and triplane 2D datasets of normal and pathological left ventricular (LV) wall-motion patterns with a focus on the effect that 3D volume rate (3DVR), image quality and tracking artifacts have on the agreement between 2D and 3D speckle tracking. 37 patients with normal LV function and 18 patients with ischaemic wall-motion abnorma...

2014
Maria Cristina Donadio Abduch Adriano Mesquita Alencar Wilson Mathias Marcelo Luiz de Campos Vieira

Natural myocardial markers, or speckles, originated from constructive and destructive interference of ultrasound in the tissues may provide early diagnosis of myocardial changes and be used in the prediction of some cardiac events. Due to its relatively temporal stability, speckles can be tracked by dedicated software along the cardiac cycle, enabling the analysis of the systolic and diastolic ...

Journal: :European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology 2009
Zoran B Popović James D Thomas

This editorial refers to ‘Feasibility and reproducibility of left ventricular rotation parameters measured by speckle tracking echocardiography’ by Bas M. van Dalen et al., pp. 669–76, ‘Interpretation of two-dimensional and tissue Doppler-derived strain (1) and strain rate data: is there a need to normalize for individual variability in left ventricular morphology?’ by David Oxborough et al., p...

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