نتایج جستجو برای: tissue doppler imaging

تعداد نتایج: 1338873  

Journal: :Physics in medicine and biology 2014
Jean Provost Clement Papadacci Juan Esteban Arango Marion Imbault Mathias Fink Jean-Luc Gennisson Mickael Tanter Mathieu Pernot

Very high frame rate ultrasound imaging has recently allowed for the extension of the applications of echography to new fields of study such as the functional imaging of the brain, cardiac electrophysiology, and the quantitative imaging of the intrinsic mechanical properties of tumors, to name a few, non-invasively and in real time. In this study, we present the first implementation of Ultrafas...

Journal: :the journal of tehran university heart center 0
zahra ojaghi-haghighi echocardiography research center, rajaei cardiovascular, medical and research center, iran university of medical sciences, tehran, iran. atoosa mostafavi echocardiography research center, shariati medical and research center, tehran university of medical sciences, tehran, iran. hassan moladoust cardiovascular research center, guilan university of medical sciences, rasht, iran. feridoun noohi echocardiography research center, rajaei cardiovascular, medical and research center, iran university of medical sciences, tehran, iran. majid maleki echocardiography research center, rajaei cardiovascular, medical and research center, iran university of medical sciences, tehran, iran. maryam esmaeilzadeh echocardiography research center, rajaei cardiovascular, medical and research center, iran university of medical sciences, tehran, iran.

background: left ventricular (lv) twist is due to oppositely directed apical and basal rotation and has been proposed as a sensitive marker of lv function. we sought to assess the impact of chronic pure mitral regurgitation (mr) on the torsional mechanics of the left human ventricle using tissue doppler imaging. methods: nineteen severe mr patients with a normal lv ejection fraction and 16 non-...

Journal: :Journal of the American College of Cardiology 2003

Journal: :Journal of the American College of Cardiology 2003

Journal: :Arquivos brasileiros de cardiologia 2004
Márcia Duarte Pedone Iran Castro Domingos Hatem José Carlos Haertel Flávia Feier Fernando Pandolfo

OBJECTIVE To determine the correlation between diastolic velocities on tissue Doppler imaging and age in a sample of healthy adults and to correlate age with the velocities of transmitral and pulmonary vein flows. METHODS Echocardiographic assessment of 51 healthy individuals, whose ages ranged from 21 to 69 years. The diastolic myocardial velocities were recorded on tissue Doppler imaging. T...

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