Echo Research and Practice

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Management of noncompaction requires optimisation
Echo Research and Practice - Tập 6 - Trang L1-L2 - 2019
Josef Finsterer, Claudia Stöllberger
Acute myocarditis with normal wall motion detected with 2D speckle tracking echocardiography
Echo Research and Practice - Tập 3 - Trang K15-K19 - 2016
Thomas Sturmberger, Johannes Niel, Josef Aichinger, Christian Ebner
We present the case of a 26-year-old male with acute tonsillitis who was referred for coronary angiography because of chest pain, elevated cardiac biomarkers, and biphasic T waves. The patient had no cardiovascular risk factors. Echocardiography showed no wall motion abnormalities and no pericardial effusion. 2D speckle tracking revealed distinct decreased regional peak longitudinal systolic strai...... hiện toàn bộ
Anterior mitral valve aneurysm: a rare sequelae of aortic valve endocarditis
Echo Research and Practice - Tập 3 Số 1 - Trang K7-K13 - 2016
Rajesh Janardhanan, Muhammad Umar Kamal, Irbaz Bin Riaz, Melissa Smith
Summary In intravenous drug abusers, infective endocarditis usually involves right-sided valves, with Staphylococcus aureus being the most common etiologic agent. We present a patient who is an intravenous drug abuser with left-sided (aortic valve) endocarditis caused by Enterococcus faecalis who ...... hiện toàn bộ
Validation of machine learning models for estimation of left ventricular ejection fraction on point-of-care ultrasound: insights on features that impact performance
Echo Research and Practice - - 2024
Christina L. Luong, Mohammad H. Jafari, Delaram Behnami, Yaksh R. Shah, Lynn Straatman, Nathan Van Woudenberg, Leah Christoff, Nancy Gwadry, Nathaniel M. Hawkins, Eric C. Sayre, Darwin Yeung, Michael Tsang, Ken Gin, John Jue, Parvathy Nair, Purang Abolmaesumi, Teresa Tsang
Machine learning (ML) algorithms can accurately estimate left ventricular ejection fraction (LVEF) from echocardiography, but their performance on cardiac point-of-care ultrasound (POCUS) is not well understood. We evaluate the performance of an ML model for estimation of LVEF on cardiac POCUS compared with Level III echocardiographers’ interpretation and formal echo reported LVEF. Clinicians at a...... hiện toàn bộ
Inter-scallop separations of the posterior leaflet of the mitral valve: an important cause of ‘pathological’ mitral regurgitation in rheumatic heart disease screening
Echo Research and Practice - - 2018
L D Hunter, Mark Monaghan, Guy Lloyd, Alfonso Pecoraro, Anton Doubell, Philip Herbst
Summary The 2012 World Heart Federation (WHF) criteria for echocardiographic diagnosis of rheumatic heart disease (RHD) identify that the finding of ‘pathological’ mitral regurgitation (MR) in a screened individual increases the likelihood of detecting underlying RHD. Cases of isolated ‘pathological MR’ are thus identified as ‘borderline RHD’. A larg...... hiện toàn bộ
Pulmonary transit time measurement by contrast-enhanced ultrasound in left ventricular dyssynchrony
Echo Research and Practice - Tập 3 Số 2 - Trang 35-43 - 2016
I Herold, Salvatore Saporito, Massimo Mischi, H.C. van Assen, R. Arthur Bouwman, Anouk G.W. de Lepper, Harrie C. M. van den Bosch, H.H.M. Korsten, Patrick Houthuizen
Abstract Background: Pulmonary transit time (PTT) is an indirect measure of preload and left ventricular function, which can be estimated using the indicator dilution theory by contrast-enhanced ultrasound (CEUS). In this study, we first assessed the accuracy of PTT-CEUS by comparing it with dynamic contrast-enhanced magnetic resonance imaging (DCE-M...... hiện toàn bộ
Echocardiographic assessment of aortic stenosis: a practical guideline from the British Society of Echocardiography
Echo Research and Practice - Tập 8 - Trang G19-G59 - 2021
Liam Ring, Benoy N. Shah, Sanjeev Bhattacharyya, Allan Harkness, Mark Belham, David Oxborough, Keith Pearce, Bushra S. Rana, Daniel X. Augustine, Shaun Robinson, Christophe Tribouilloy
The guideline provides a practical step-by-step guide in order to facilitate high-quality echocardiographic studies of patients with aortic stenosis. In addition, it addresses commonly encountered yet challenging clinical scenarios and covers the use of advanced echocardiographic techniques, including TOE and Dobutamine stress echocardiography in the assessment of aortic stenosis.
Myocardial ischaemia as a result of external coronary compression from infective aortic root aneurysm: atypical presentation of prosthetic valve endocarditis
Echo Research and Practice - Tập 5 - Trang K35-K40 - 2018
Baskar Sekar, Richard Wheeler, Navroz Masani, Sean Gallagher
This case describes an unusual presentation of prosthetic valve endocarditis (PVE): an acute coronary syndrome. A 67-year-old male presented with cardiac sounding chest pain on a background of a short history of night sweats, weight loss and general malaise. Four months previously, he had undergone bio-prosthetic aortic valve replacement for severe aortic stenosis and single vessel bypass grafting...... hiện toàn bộ
3D angle-independent Doppler and speckle tracking for the myocardium and blood flow
Echo Research and Practice - Tập 6 - Trang 105-114 - 2019
Norman McDicken, Adrian Thomson, Audrey White, Iqbal Toor, Gillian Gray, Carmel Moran, Robin J Watson, Tom Anderson
A technology based on velocity ratio indices is described for application in the myocardium. Angle-independent Doppler indices, such as the pulsatility index, which employ velocity ratios, can be measured even if the ultrasound beam vector at the moving target and the motion vector are not in a known plane. The unknown plane situation is often encountered when an ultrasound beam interrogates sites...... hiện toàn bộ
Challenges and opportunity in the era of quantitative echocardiography
Echo Research and Practice - Tập 4 - Trang E3-E6 - 2017
Cheuk-Man Yu
The advancement of echocardiography in the past two decades is more than downsizing of the machines and improvement of image quality, but introduction of new imaging modalities leading to the ability of performing quantitative analysis. This function is greatly facilitated by the integration of echo machines with high performance computers, software programming and establishment of workstation for...... hiện toàn bộ
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