Myocardial deformation
Impaired myocardial deformation and ventricular vascular coupling in obese adolescents with dysglycemia
... alters myocardial substrate utiliza- tion and increases sympathetic tone, preload, and fatty acid metabolism, which ultimately results in impaired LV contractility and may lead to clinical heart failure in later ...
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The potential role of feature tracking in adult congenital heart disease: advantages and disadvantages in measuring myocardial deformation by cardiovascular magnetic resonance
... that myocardial deformation is a more sen- sitive, quantitative evaluation of global contractile func- tion that can detect changes in ventricular function before a fall in EF ...Moreover, myocardial ...
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Global and regional left ventricular myocardial deformation measures by magnetic resonance feature tracking in healthy volunteers: comparison with tagging and relevance of gender
... segmental myocardial deformation parameters in 145 healthy volunteers who had steady state free precession (SSFP) cine left ventricular short (basal, mid and apical levels) and long axis views (horizontal ...
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Time-course changes in left ventricular myocardial deformation in STZ-induced rabbits on velocity vector imaging
... ventricular myocardial deformation using velocity vector imaging and to provide insights into our understanding of the cardiac pathophysiology in diabetes ...the myocardial deformation ...
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Cardiac function assessed by myocardial deformation in adult polycystic kidney disease patients
... Speckle tracking was performed in the apical 4-, 2- and 3-chamber projections as recommended by current guidelines [13]. The tracing of the myocardial wall was done using a semiautomatic function. In cases of in- ...
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Estimation of myocardial deformation using correlation image velocimetry
... The results in this paper suggest that CIV is a viable tool for cardiac deformation analysis. A few shortcom- ings, however, have to be addressed before it can be used in a clinical setting. Though the ...
13
Early Marker of Myocardial Deformation in Children with Duchenne Muscular Dystrophy Assessed Using Echocardiographic Myocardial Strain Analysis
... all myocardial levels, three-layer circumferential strain in the abnormally contracting segments was lower than in the corresponding intact segments, while at the basal epicar- dial layer, this difference was of ...
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An automated in vitro model for the evaluation of ultrasound modalities measuring myocardial deformation
... deformation frequencies during larger deformations. In our experiments we used 8 Hz as the highest deforma- tion frequency. Even though 8 Hz (480 bpm) is not a physiological heart rate this result is interesting ...
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Novel echocardiographic techniques to assess left atrial size, anatomy and function
... Three-dimensional echocardiography (3DE) and speckle tracking echocardiography (STE) have recently applied as imaging techniques to accurately evaluate left atrial (LA) size, anatomy and function. 3DE and off-line ...
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Echocardiographic quantification of myocardial function using tissue deformation imaging, a guide to image acquisition and analysis using tissue Doppler and speckle tracking
... Tissue deformation imaging is a recently introduced tech- nique which enables the objective assessment of regional myocardial deformation assessed by ultrasound based strain and strain rate using ...
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Myocardial tissue characterisation using echocardiographic deformation imaging
... assess myocardial deformation at both segmental and global ...distinct myocardial pathologies affect deformation differently, information about the underlying tissue can be inferred by ...STE ...
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Quantitative evaluation of longitudinal strain in layer-specific myocardium during normal pregnancy in China
... global myocardial deformation in three dimensions, longitu- dinal, circumferential as well as radial strain, reduced markedly in the third trimester [2, ...ventricular myocardial fibers in the ...
8
Fetal cardiac muscle contractility decreases with gestational age: a color-coded tissue velocity imaging study
... The present study demonstrates a linear relationship be- tween LV length and gestational age. Stroke volumes of the ventricles have a curvilinear relationship with gesta- tional age [6] and it seems that the relative ...
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Comparison of left ventricular mechanics in runners versus bodybuilders using speckle tracking echocardiography
... of myocardial deformation in our groups: while GRS was similar, GLS was decreased in runners, GCS was decreased in bodybuilders compared to the other two groups (GLS: ...
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Usefulness of Pulmonary Regurgitation Doppler Tracings in Predicting Outcome in Patients with Acute Inferior Wall Myocardial Infarction.
... This is defined as peak isovolumic myocardial velocity divided by time to peak velocity. It is measured by Doppler tissue imaging at the lateral tricuspid annulus and is considered as the most consistent tissue ...
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The impact of anesthesia providers on major morbidity following screening colonoscopies
... This study evaluates the impact of anesthesia services on major morbidity associated with myocardial infarction (MI) or stroke within 7 days following a screening colonoscopy. In addition, the efficacy, completion ...
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Original Article Effects of rhBNP on myocardial fibrosis after myocardial infarction in rats
... after myocardial infarction ...Furthermore, myocardial volume fraction (CVF) was ana- lyzed using the Sirius Red F3B (SR) while the percentage of type I and III collagen in 3 groups were analyzed using the ...
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Numerical Modeling of Deformation, Oscillation, Spreading and Collision Characteristics of Droplets in an Electric Field
... Electrohydrodynamics (EHD) is the study of the fluid flow caused by electric forces. The earliest record of an EHD experiment is in William Gilbert’s seventeenth century treatise “De Magnete”, which describes the ...
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Comprehensive assessment of left ventricular myocardial function by two-dimensional speckle-tracking echocardiography
... the myocardial fi- bers, contributes to the thickening of the myocardium to- wards the ventricular centroid and the consequent ejection of the corresponding systolic ...intrinsic myocardial torsion known as ...
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Analysis and Compensation of Subreflector Displacement for the Parabolic Antenna of a Radio Telescope
... gravitational deformation with the change in elevation attitude in the working process and this deformation will worsen the precision of the reflector, resulting in the reduction of antenna’s ...
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