نتایج جستجو برای: strain and strain rate echocardiography

تعداد نتایج: 16923574  

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 ...

Journal: :Circulation. Cardiovascular imaging 2011
Brian D Hoit

The echocardiographic assessment of regional myocardial function plays a critical role in the diagnosis and management of ischemic heart disease and in most laboratories relies on the visual detection of endocardial wall motion abnormalities and assessment of left ventricular (LV) ejection fraction. However, this approach is subjective and operator dependent, demands complete visualization of t...

2016
Karakurt Cemşit Çelik Serkan Selimoğlu Ayşe Varol İlknur Karabiber Hamza Yoloğlu Saim

OBJECTIVE This study aimed to evaluate strain and strain rate echocardiography in children with Wilson's disease to detect early cardiac dysfunction. METHODS In this study, 21 patients with Wilson's disease and a control group of 20 age- and gender-matched healthy children were included. All the patients and the control group were evaluated with two-dimensional (2D) and colour-coded conventio...

2016
Oana Mirea Jurgen Duchenne Jens-Uwe Voigt

Deformation imaging by echocardiography is a well-established research tool which has been gaining interest from clinical cardiologists since the introduction of speckle tracking. Post-processing of echo images to analyze deformation has become readily available at the fingertips of the user. New parameters such as global longitudinal strain have been shown to provide added diagnostic value, an...

Journal: :archives of cardiovascular imaging 0
samir kanti saha research and development division, sundsvalls hospital, sundsvall, sweden; karolinska institute, stockholm, sweden; research and development division, sundsvalls hospital, sundsvall, sweden.

Journal: :archives of cardiovascular imaging 0
zahra ojaghi haghighi echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran; md, facc,echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran. tel: +98-2123922134, fax: +98-2122055594 azin alizadehasl cardiovascular research center, tabriz university of medical sciences, tabriz, ir iran majid maleki echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran nasim naderi echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran maryam esmaeilzadeh echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran fereidoon noohi echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran

background recently, assessment of the atrial motion and deformation indices obtained via doppler myocardial imaging (dmi) has been proposed as a new method of exploring the atrial function. objective our aim was to assess the right atrial (ra) regional function using myocardial velocities, strain, and strain rate imaging (sri) and compare it with the function of the inter-atrial septum (ias) a...

Journal: :international journal of iron & steel society of iran 2012
a. khosravifard m. m. moshksar r. ebrahimi

advanced high strength steels (ahss) have recently attracted great attention because of their superior mechanical properties. a modern group of these steels, known as twinning induced plasticity (twip) steels, shows a unique combination of strength and ductility even at high rates of strain. in order to examine the functionality of such steels in dynamic loading conditions, their mechanical beh...

Journal: :archives of cardiovascular imaging 0
alireza moaref cardiovascular research center, shahid faghihi hospital, shiraz university of medical sciences, shiraz, ir iran; cardiovascular research center, shahid faghihi hospital, shiraz university of medical sciences, shiraz, ir iran. tel/fax: +98-7112342248 firuzeh abtahi cardiovascular research center, shiraz university of medical sciences, shiraz, ir iran kamran aghasadeghi cardiovascular research center, shiraz university of medical sciences, shiraz, ir iran shahnaz shekarforoush department of physiology, arsanjan branch, islamic azad university, shiraz, ir iran

conclusions this study indicated that the rv systolic strain and strain rate can be used to detect early rv systolic dysfunction in ssc patients without pulmonary hypertension. these parameters may be useful for the provision of a more adequate management of ssc patients. results in the ssc patients, the rv strain (- 19 ± 10 vs. - 25 ± 4 %; p = 0.004) and the systolic strain rate (- 1.3 ± 0.5 v...

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