نتایج جستجو برای: tissue doppler echocardiography

تعداد نتایج: 989776  

Journal: :the journal of tehran university heart center 0
manijhe mokhtari dizaji department of medical physics, tarbiat modares university, tehran, iran. mehdi maerefat department of mechanical engineering, tarbiat modares university, tehran, iran. saeed rahgozar department of mechanical engineering, kashan university, kashan, iran.

background: pulse wave velocity (pwv) is widely used for estimating the stiffness of an artery. v arious invasive and non-invasive methods have been developed to determine pwv over the years. in the present research , the non-invasive estimation of the pwv of large arteries was used as an index for arterial stiffness. methods: a dynamic model based on the navier-stokes equations coupled to elas...

2009
Murat KİBAR

The aim of this study was to explore the feasibility and the diagnostic value of conventional Doppler parameters of transmitral inflows and Doppler tissue echocardiography parameters of septal annulus motion for the assessment of diastolic dysfunction in dogs with cardiac failure. The LV diastolic mitral flow patterns were divided into normal diastolic flow pattern (group 1), delayed relaxation...

2012
Cláudio César Monteiro de Castro Carlos Bellini Gondim Gomes Manoel Ricardo Alves Martins Juliana Cordeiro de Sousa Silvia MM Magalhaes Ronald F Pinheiro

Myelodysplastic syndrome (MDS) is a clonal hematopoietic stem cell disorder of elderly people. Cardiac dysfunction is a marker of grim prognosis in MDS. We evaluated cardiac dysfunction of MDS patients with or without transfusion dependency by tissue doppler echocardiography. We found the average values of ventricular end-systolic and end-diastolic volumes in transfusion dependency MDS group hi...

Journal: :Turk Kardiyoloji Dernegi arsivi : Turk Kardiyoloji Derneginin yayin organidir 2016
Ali Hosseinsabet Shima Yarmohamadi Sima Narimani Nazanin Amini-Farshidmehr

OBJECTIVE Coronary slow-flow phenomenon (CSFP) is described as protracted passage of angiographic contrast agent to the distal portion of the epicardial coronary arteries in the absence of stenosis. Few studies have addressed the effects of this condition on right ventricular (RV) dysfunction. The present objective was to assess RV function in CSFP via 2-dimensional speckle-tracking echocardiog...

Journal: :Cardiovascular Ultrasound 2006
Rosa Sicari

The ninth edition of the congress of the European Association of Echocardiography (EAE) (former working group of Echocardiography) held in Florence has just finished with a great success of participant attendance (2.842) and abstract submissions. Hot topics at EuroEcho 9 were: 1--live 3-dimensional echocardiography and surgical decision making; in pediatric cardiology; in resynchronization ther...

Journal: :Postgraduate medical journal 2002
D Vinereanu A G Fraser M Robinson A Lee A Tweddel

Adenosine stress echocardiography was performed in nine patients (58 (+/-3) years, eight women) with documented microvascular angina. Global ventricular function was assessed by Tc(99m) blood pool imaging and Doppler, whereas longitudinal ventricular function was assessed by simultaneous tissue Doppler echocardiography of the lateral mitral annulus. Adenosine was infused incrementally to onset ...

Journal: :Cardiovascular Ultrasound 2004
George Thomas

BACKGROUND The developments in echocardiography or ultrasound cardiography (UCG) have improved our clinical capabilities. However, advanced hardware and software capabilities have resulted in UCG facilities of dubious clinical benefits. Is tissue Doppler echocardiography (TDE) is one such example? PRESENTATION OF THE HYPOTHESIS TDE has been touted as advancement in the field of echocardiograp...

2001
EDMUND K. KERUT

Tissue Doppler imaging was used with transthoracic and transesophageal echocardiography to determine its clinical usefulness beyond visualization of ventricular wall motion. Thirteen novel applications were found: acoustically difficult transthoracic studies, thrombus, mitral chordal motion, shunt detection using saline contrast, spontaneous echo contrast, intra-aortic balloon pump position and...

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