Structure-based finite strain modelling of the human left ventricle in diastole [PDF]
International Journal for Numerical Methods in Biomedical Engineering, 2013 Finite strain analyses of the left ventricle provide important information on heart function and have the potential to provide insights into the biomechanics of myocardial contractility in health and disease. Systolic dysfunction is the most common cause
Bishop +38 more
core +3 more sources
MDCT evaluation of dynamic changes in aortic root parameters during the cardiac cycle in patients with aortic regurgitation [PDF]
Scientific ReportsObjectives: To investigate the dynamic changes in multiple planes and parameters of the aortic root region at different phases of the cardiac cycle in patients with aortic regurgitation (AR) using multi-detector row computed tomography (MDCT). To provide
Shuai Zhang +4 more
doaj +2 more sources
Fiber Orientation in the Canine Left Ventricle during Diastole and Systole
Circulation Research, 1969 Daniel D. Streeter +4 more
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Mean and Variability of Lipid Measurements and Risk for Development of Subclinical Left Ventricular Diastolic Dysfunction [PDF]
Diabetes & Metabolism Journal, 2022 Background Subclinical left ventricular diastolic dysfunction (LVDD) is an emerging consequence of increased insulin resistance, and dyslipidemia is one of the few correctable risk factors of LVDD. This study evaluated the role of mean and visit-to-visit
Jiyun Park +10 more
doaj +1 more source
A modified Holzapfel-Ogden law for a residually stressed finite strain model of the human left ventricle in diastole [PDF]
Biomechanics and Modeling in Mechanobiology, 2013 In this work, we introduce a modified Holzapfel-Ogden hyperelastic constitutive model for ventricular myocardium that accounts for residual stresses, and we investigate the effects of residual stresses in diastole using a magnetic resonance imaging ...
He Wang +6 more
openalex +2 more sources
Brazilian Journal of Cardiovascular Surgery, 2016 Objective To complement the ISO 5840 standards concerning the duration of left ventricular systole and diastole as a function of changes in heart rates according to in vivo studies from the physiologic literature review.
Ovandir Bazan, Jayme Pinto Ortiz
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Delineation and Analysis of Seismocardiographic Systole and Diastole Profiles [PDF]
IEEE Transactions on Instrumentation and Measurement, 2020 Precise estimation of fiducial points of a seismocardiogram (SCG) signal is a challenging problem for its clinical usage. Delineation techniques proposed in the existing literature do not estimate all the clinically significant points of an SCG signal ...
Tilendra Choudhary, M. Bhuyan, L. Sharma
semanticscholar +1 more source
Aortic root dimension changes during systole and diastole: evaluation with ECG-gated multidetector row computed tomography [PDF]
The International Journal of Cardiovascular Imaging, 2011 Cardiac pulsatility and aortic compliance may result in aortic area and diameter changes throughout the cardiac cycle in the entire aorta. Until this moment these dynamic changes could never be established in the aortic root (aortic annulus, sinuses of ...
Linda M. de Heer +5 more
openalex +2 more sources
Diffusion MRI tractography of the human heart In Vivo at end-diastole and end-systole [PDF]
Journal of Cardiovascular Magnetic Resonance, 2012 Summary Diffusion Tensor MRI (DTI) of the human heart in vivo has to date been performed in 2D and at a single phase of the cardiac cycle. Here we perform 3D tractography of the human heart in vivo at both end diastole and end systole. We show that fiber
Choukri Mekkaoui +5 more
openalex +2 more sources
Modelling of fibre dispersion and its effects on cardiac mechanics from diastole to systole
Journal of Engineering Mathematics, 2021 Detailed fibre architecture plays a crucial role in myocardial mechanics both passively and actively. Strong interest has been attracted over decades in mathematical modelling of fibrous tissue (arterial wall, myocardium, etc.) by taking into account ...
D. Guan +4 more
semanticscholar +1 more source