نتایج جستجو برای: echocardiography images

تعداد نتایج: 304198  

1996
Thomas Berlage Thorsten Fox Gernoth Grunst Klaus-Jürgen Quast

We have developed a training and support system for echocardiography based on a 3D visualization of a virtual beating heart and the blood flow. The user can interact with the system by positioning a tracker-equipped transducer. The user is able to acquire mental images of the dynamic anatomy of the heart, a mental model for the interpretation of ultrasonic images, and skills in capturing

2013
D Black J Vettukattil

There have been significant advancements in the ability of echocardiography to provide both morphological and functional information in children with congenitally malformed hearts. This progress has come through the development of improved technology such as matrix array probes and software which allows for the off line analysis of images to a high standard. This article focuses on these develo...

2016
Simon Thalén Peder Sörensson Andreas Sigfridsson Martin Ugander

Background Echocardiography has shown that patients with constrictive pericarditis or hemodynamically significant pericardial effusion show an increased respiratory variation in early transmitral inflow velocity. The methodology for quantification of respiratory variation in early transmitral inflow velocity using real time phase contrast (RT-PC) cardiovascular magnetic resonance (CMR) images i...

2012
Christian Alcaraz Frederiksen Peter Juhl-Olsen Dorte Guldbrand Nielsen Berit Eika Erik Sloth

BACKGROUND Previous studies addressing teaching and learning in point-of-care ultrasound have primarily focussed on image interpretation and not on the technical quality of the images. We hypothesized that a limited intervention of 10 supervised examinations would improve the technical skills in Focus Assessed Transthoracic Echocardiography (FATE) and that physicians with no experience in FATE ...

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: :Arquivos brasileiros de cardiologia 2007
Jeane Mike Tsutsui Wilson Mathias

Mailing address: Jeane Mike Tsutsui • InCor Av. Dr. Enéas de Carvalho Aguiar, 44 05403-000 São Paulo, SP Brazil E-mail: [email protected] Manuscript received June 15, 2006; revised received September 24, 2006; accepted October 5, 2006. Contrast echocardiography is a technique that uses a peripheral intravenous injection of microbubble contrast agents to improve the echocardiographic si...

Journal: :Critical care and resuscitation : journal of the Australasian Academy of Critical Care Medicine 1999
K D Donovan F Colreavy

OBJECTIVE To review the current status of echocardiography in critically ill patients with special reference to the advantages and disadvantages of the transthoracic and transoesophageal approaches. DATA SOURCES A review of articles published in peer reviewed journals from 1976-1999 and identified through a MEDLINE search on echocardiography. SUMMARY OF REVIEW Echocardiography is a rapidly ...

2001
Carlos A. Suarez

99 T his book offers a clear and concise treatment of echocardiography of the heart from the perspective of the cardiac surgeon. The authors emphasize the idea that the cardiac surgeon should be familiar with the technology of ultrasound to augment his or her ability to diagnose and treat cardiac disease requiring surgery. They do so in a superb manner with well-written text and with many illus...

Journal: :European heart journal cardiovascular Imaging 2014
Alessia Gimelli Riccardo Liga Emilio Maria Pasanisi Assuero Giorgetti Gavino Marras Brunella Favilli Paolo Marzullo

AIMS To evaluate the relationships between measures of left ventricular (LV) filling dynamics at cadmium-zinc-telluride (CZT) imaging and indexes of LV diastolic function at transthoracic echocardiography. METHODS AND RESULTS Two hundred and forty-seven patients underwent myocardial perfusion imaging at rest and after stress with a low-dose CZT protocol and a baseline transthoracic echocardio...

2006
Ho-Joong Youn

With advancements in high frequency transducers, transesophageal (TEE) and transthoracic Doppler echocardiography (TTE) are emerging as promising methods for the evaluation of coronary arteries. In addition to visualizing images for the detection of stenosis of the proximal and distal coronary arteries, as well as various kinds of coronary artery anomalies, the functional assessment through mea...

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