Research: A Vital Mission for ASE
Everything we do in the practice of echocardiography is based on results of previously performed research. Few of us are exposed to the enormous amount of work that is undertaken…
Effects of Prolonged Exercise on Left Ventricular Mechanical Synchrony in Long-Distance Runners: Importance of Previous Exposure to Endurance Races
Background Prolonged exercise has been shown to lead to elevated levels of cardiac troponin and altered cardiac function on echocardiography. It is not known if cardiac synchrony is altered by…
The Feasibility of Velocity Vector Imaging by Transesophageal Echocardiography for Assessment of Elastic Properties of the Descending Aorta in Aortic Valve Disease
Background Velocity vector imaging (VVI) is a novel two-dimensional speckle-based imaging technique for evaluation of tissue deformation. The aim of this study was to determine the feasibility and variability of…
Quantitative Evaluation of Coronary Artery Wall Echogenicity by Integrated Backscatter Analysis in Kawasaki Disease
Background Coronary artery wall echogenicity increases on echocardiograms during the acute phase of Kawasaki disease (KD). According to this background, echogenicity of the coronary artery wall in patients with KD…
A Depression in Left Ventricular Diastolic Filling following Prolonged Strenuous Exercise is Associated with Changes in Left Atrial Mechanics
Background Standard marathon running can result in a depression of left ventricular (LV) diastolic function during early recovery. Left atrial (LA) mechanics are integral in maintaining an early diastolic pressure…
Myocardial Tissue Doppler Velocity Imaging in Children: Comparative Study between Two Ultrasound Systems
Background The investigators compared pulsed-wave tissue Doppler (PWTD) and color tissue Doppler (CTD) ventricular tissue velocities obtained using Vivid 7 (GE) and iE33 (Philips) ultrasound systems within a 30-minute time…
Comparison of Echocardiographic Single-Plane versus Biplane Method in the Assessment of Left Atrial Volume and Validation by Real Time Three-Dimensional Echocardiography
Background The American Society of Echocardiography recommends calculating left atrial (LA) biplane volume because of its greater accuracy and prognostic value over LA diameter. However, biplane methods are not always…
Comparison between Different Speckle Tracking and Color Tissue Doppler Techniques to Measure Global and Regional Myocardial Deformation in Children
Background Myocardial deformation parameters obtained by speckle-tracking echocardiography (STE) and color Doppler tissue imaging (CDTI) using two different ultrasound systems and three different software packages were compared. Methods Apical four-chamber,…
Accuracy of Right Ventricular Volumes and Function Determined by Three-Dimensional Echocardiography in Comparison with Magnetic Resonance Imaging: A Meta-Analysis Study
Background Determining right ventricular (RV) function is challenging because of the complex anatomy of the right ventricle. Three-dimensional echocardiography (3DE) has achieved better estimation, but underestimations of volumes and ejection…
Impact of Diastolic Dysfunction Grade on Left Atrial Mechanics Assessed by Two-Dimensional Speckle Tracking Echocardiography
Background Mitral inflow patterns reflect not only left ventricular diastolic function but also left atrial (LA) remodeling. The aim of this study was to determine the effects of left ventricular…
