Results 11 to 20 of about 111,570 (396)
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, simultaneously.
Tilendra Choudhary, M. Bhuyan, L. Sharma
arxiv +3 more sources
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
openalex +2 more sources
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
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
Research in Cardiovascular Medicine, 2012 Background: Identifying End-Diastole (ED) and End-Systole (ES) frames is highly important in the process of evaluating cardiac function and measuring global parameters accurately, such as Ejection Fraction (EF), Cardiac Output (CO) and Stroke Volume ...
Saeed Darvishi +3 more
openalex +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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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
Cardiovascular Research, 2000 Primary diastolic failure is typically seen in patients with hypertensive or valvular heart disease as well as in hypertrophic or restrictive cardiomyopathy but can also occur in a variety of clinical disorders, especially tachycardia and ischemia. Diastolic dysfunction has a particularly high prevalence in elderly patients and is generally associated,
Mandinov, Lazar +3 more
openaire +7 more sources