نتایج جستجو برای: tissue doppler imaging (tdi)

تعداد نتایج: 1339772  

Background: Conventional echocardiography and tissue Doppler imaging have been highlighted to diagnose diastolic and systolic heart dysfunction. We aimed to compare tissue Doppler imaging with conventional echocardiography to diagnose heart dysfunctions in diabetes mellitus type 1 (DMT1) patients. <s...

Journal: :the journal of tehran university heart center 0
hassan moladoust department of medical physics, tarbiat modares university, tehran, iran. manijhe mokhtari-dizaji department of medical physics, tarbiat modares university, tehran, iran. zahra ojaghi-haghighi shaheed rajaie heart center, iran university of medical sciences, tehran, iran.

background: the recent developments in tissue doppler imaging (tdi) now more than ever permit the quantification of the myocardial function. in the current systems, tissue tracking or displacement curves are generated from color tissue doppler data through the instantaneous temporal integral of velocity-time curves. methods: the purpose of the present study was to assess regional myocardial dis...

Journal: :the journal of tehran university heart center 0
mohammad asadpour piranfar taleghani hospital, shahid beheshti university of medical sciences, tehran, iran. mersedeh karvandi taleghani hospital, shahid beheshti university of medical sciences, tehran, iran. arash mohammadi tofigh imam hussein hospital, shahid beheshti university of medical sciences, tehran, iran.

background: we sought to assess right ventricular (rv) systolic and diastolic functions via tissue doppler imaging (tdi) in order to discriminate right-to-left (bidirectional) from left-to-right intracardiac shunts. methods: a tissue doppler velocity study via doppler echocardiography was performed in 20 patients with left-to-right shunt (without evidence of significant pulmonary hypertension) ...

Introduction Left ventricular (LV) twist is believed to store potential energy and plays an important role in generating diastolic suction. Recent advances in echocardiography techniques have allowed quantification of LV twist. The aim of the present study was to compare LV twist and torsion in healthy human subjects determined by velocity vector imaging (VVI) and tissue Doppler imaging (TDI) a...

Journal: :archives of cardiovascular imaging 0
arezoo zoroufian tehran heart center, tehran university of medical sciences, tehran, ir iran; md,tumzsonhmesvtcgo~uw~,tumzsonuowws{}}yoofmmemkcmlsskmoogw,tumzson,i[ri{son.tum~:+;9=?39882;;77?,fgyz:+;9=?39882;;77>, hossein dabbaghian tehran heart center, tehran university of medical sciences, tehran, ir iran mehrnaz rezvanfard tehran heart center, tehran university of medical sciences, tehran, ir iran mohammad sahebjam tehran heart center, tehran university of medical sciences, tehran, ir iran hakimeh sadeghian tehran heart center, tehran university of medical sciences, tehran, ir iran masoumeh lotfi tokaldany tehran heart center, tehran university of medical sciences, tehran, ir iran

conclusions our results demonstrated the ability of pw-tdi and s/sr modalities in detection of the early subclinical abnormalities in asymptomatic patients with significant chronic ar. results ar group had significantly increased lv end systolic and end diastolic volumes, interventricular septum and posterior wall thickness compared to controls. in ar, sm and em of septal wall, sm of lateral wa...

Ahmad Tamadoni, Mosatafa Hojati, Rozita Jalalian, Hasan Mahmoodi Nesheli, Mehrdad Saravi, Saeed Ramezani,

Background: Iron-mediated cardiomyopathy is the main complication of thalassemia major (TM) patients. Therefore, there is an important clinical need in the early diagnosis and risk stratification of patients. The aim of this study was to evaluate the efficacy of tissue doppler imaging (TDI) to study cardiac iron overload in patients with TM using T2* magnetic resonance (MR) as the gold-standard...

Journal: :Journal of the American College of Cardiology 2003
Mei Wang Gabriel W K Yip Angela Y M Wang Yan Zhang Pik Yuk Ho Mui Kiu Tse Peggo K W Lam John E Sanderson

OBJECTIVES The aim of this study was to ascertain if left ventricular mitral annulus velocities measured by tissue Doppler imaging (TDI) are more powerful predictors of outcome compared with clinical data and standard Doppler-echocardiographic parameters. BACKGROUND Tissue Doppler imaging of basal or mitral annulus velocities provides rapid assessment of ventricular long axis function. But it...

Journal: :Fetal diagnosis and therapy 2012
Montse Comas Fatima Crispi

OBJECTIVE Tissue Doppler echocardiography is being increasingly used in fetal medicine as a clinical and research tool. The objective of this study was to review the current status of tissue Doppler imaging (TDI) techniques applied to the fetus. METHODS Fetal cardiac function was evaluated using spectral and color TDI modes in normal fetuses and in several clinical conditions. RESULTS Annul...

Background Diabetes mellitus type I (DMTI) is one of the most common endocrine and metabolic conditions in childhood. We aimed to assess the tissue Doppler imagining changes in children with DMTI compared to healthy children. Materials and Methods This case-control study was performed on 96 DMTI and 96 healthy children. The d...

2012
Febe E. Shaker Khaled Elkhashab Hany Younan Mohamed A. Mashahit

modifications and medical interventions could prevent or delay the subsequent development of heart failure in Diabetic patients. Conventional echocardiography was used to screen for and diagnose left ventricular diastolic dysfunction-LVDDbut the results was not satisfactory and underestimate the magnitude of LVDD due to the pseudonormal pattern in grade 2 diastolic dysfunction. Tissue Doppler i...

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