نتایج جستجو برای: doppler echocardiography

تعداد نتایج: 82572  

In this study, a method for non-invasive estimation of stress on the heart wall in  the diastole phase is presented using ultrasound echocardiography and tissue Doppler  imaging. The aim of this study was to evaluate the stress on the heart wall as a  pre-diagnosis  to identify people with coronary artery stenosis. 29 patients with stenosis of more than 70%, 30 patients with stenosis of 50 to 7...

Journal: :Cardiology journal 2012
Ali Deniz Levent Sahiner Kudret Aytemir Baris Kaya Giray Kabakci Lale Tokgozoglu Ali Oto

BACKGROUND The main purpose of this study is to determine the correlation of inter- and intraatrial conduction times between the electrophysiological and tissue Doppler echocardiographic measurements, and to evaluate the appropriateness of tissue Doppler echocardiography for this measurement. METHODS One-hundred and one patients were included in the study who underwent electrophysiological st...

2017
Munemura Suzuki Norihiko Kotooka Masashi Sakuma Takahiko Nakazono Koichi Node Hiroyuki Irie

PURPOSE Three-chamber view (3ch.) three-directional encoded phase-contrast magnetic resonance velocity vector mapping (PCMRVM) has been used for visualization and assessment of intra-cardiac flow. Although transmitral inflow velocity can be determined using this method by tracing mitral tips during the cardiac phase, its feasibility for clinical applications has not been established. Our aim wa...

Journal: :Journal of interventional cardiology 1995
A Ludomirsky

The last decade saw a dramatic change in the management of congenital heart defects. The introduction and development in echocardiography and Doppler modalities enable definitive diagnosis of congenital lesions without cardiac catheterization. At the same time, new therapeutic procedures for congenital defects using the catheter as a channel for different procedures were developed. These therap...

Journal: :Postgraduate medical journal 1991
G M McKillop D A Stewart J M Burns D Ballantyne

Thirty-nine elderly patients, mean age 77 years (range 65 to 96), with ejection systolic murmurs were studied to evaluate the functional significance of these murmurs. Subjects were evaluated clinically, by 2-D echocardiography, and by a full Doppler echocardiography study. Good quality Doppler signals were obtained in 35 subjects. Mitral regurgitation was found to be the only significant valvu...

Journal: :medical journal of islamic republic of iran 0
a ghaemian from the department of cardiology, mazandaran university of medical sciences, sari, i.r. iran. a hoseini m kosarian

in order to identify left ventricular diastolic function in patients with betathalassemia major and normal systolic function by noninvasive m-mode and doppler echocardiography, an analytic study was designed in a university hospital in sari. we have studied 44 patients (23 men and 21 women), mean age 15.48±2.16 (range 12 to 20) and 43 age and sex matched control subjects. peak flow velocity in ...

Journal: :Circulation 1980
A S Abbasi M W Allen D DeCristofaro I Ungar

Sensitivity and specificity of detection of mitral regurgitation was assessed by range-gated Doppler echocardiography. The degree of mitral regurgitation was also estimated by the depth and width of the regurgitant jet detected with Doppler and compared with that assessed by left ventriculography. Of 47 patients with an adequate Doppler study, 24 had no mitral regurgitation by ventriculography....

2014
Sebastian Greiner Andreas Jud Matthias Aurich Alexander Hess Thomas Hilbel Stefan Hardt Hugo A. Katus Derliz Mereles

BACKGROUND Pulmonary artery pressure (PAP) is an important marker in cardiovascular disorders, being closely associated with morbidity and mortality. Noninvasive assessment by Doppler echocardiography is recommended by current guidelines. So far, the reliability of this method has been assessed only in small studies with contradictory results. Therefore, the aim of this study was to analyze the...

2009
Mohd Suhail Mohd Faizul-Suhail Hina Khan Safia Suhail

UNLABELLED An infant, showing peripheral cyanosis, was born after lower abdominal peripheral caesarian section of the pregnant women having TORCH positive test with the infection of Toxoplasma gondiiand Cytomegalovirus. She had three abortions prior to this pregnancy. Doppler echocardiography of the baby showed profound intracardiac defects. After birth, echocardiography was carried out for dia...

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