Results 11 to 20 of about 118,457 (381)

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, Buckberg, Costa, Costa, Costa, Demer, Demiray, Dokos, Guccione, Guccione, Göktepe, Holzapfel, Horowitz, Humphrey, Humphrey, Hunter, Klotz, LeGrice, May-Newman, McCulloch, McCulloch, Miehe, Nash, Novak, Omens, Paulus, Potse, Sands, Schmid, Schmid, Smaill, Stevens, Velagaleti, Vetter, Vossoughi, Wang, Wang, Xi, Yin   +38 more
exaly   +5 more sources

Aortic root dimension changes during systole and diastole: evaluation with ECG-gated multidetector row computed tomography [PDF]

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 ...
Ricardo P J Budde, Lex A Van Herwerden
exaly   +3 more sources

Experimentally Increasing Titin Compliance in a Novel Mouse Model Attenuates the Frank-Starling Mechanism But Has a Beneficial Effect on Diastole [PDF]

Circulation, 2014
Mei Methawasin, Coen A C Ottenheijm, Henk Granzier   +2 more
exaly   +3 more sources

Renal denervation in heart failure with normal left ventricular ejection fraction. Rationale and design of the DIASTOLE (DenervatIon of the renAl Sympathetic nerves in hearT failure with nOrmal Lv Ejection fraction) trial [PDF]

European Journal of Heart Failure, 2013
Willemien L. Verloop, Martine M. A. Beeftink, A Nap, Michiel L. Bots, Birgitta K. Velthuis, Yolande Appelman, M Cramer, Willem R.P. Agema, Asbjørn M. Scholtens, Pieter A. Doevendans, Cor Allaart, Michiel Voskuil   +11 more
exaly   +3 more sources

Optimal phase for coronary interpretations and correlation of ejection fraction using late-diastole and end-diastole imaging in cardiac computed tomography angiography: implications for prospective triggering [PDF]

International Journal of Cardiovascular Imaging, 2009
A typical acquisition protocol for multi-row detector computed tomography (MDCT) angiography is to obtain all phases of the cardiac cycle, allowing calculation of ejection fraction (EF) simultaneously with plaque burden.
Hussain Isma'eel, Naser Ahmadi, Matthew J Budoff   +2 more
exaly   +3 more sources

Evaluation of the intraventricular hemodynamics of patients with left ventricular dysfunction via vector flow mapping [PDF]

Frontiers in Cardiovascular Medicine
BackgroundVorticity, measured via new vector flow mapping (VFM), a quantitative marker of vortex dynamics, can reflect hemodynamic changes more sensitively, potentially offering complementary information to conventional echocardiographic indices of ...
Qun Xu, Li Hao, Guang Yang, Mei Zhang, Mingxue Di   +4 more
doaj   +2 more sources

Estimation of End-Diastole in Cardiac Spectral Doppler Using Deep Learning

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2020
Electrocardiogram (ECG) is often used together with a spectral Doppler ultrasound to separate heart cycles by determining the end-diastole locations. However, the ECG signal is not always recorded.
Tollef Struksnes Jahren, Erik Steen, Svein Arne Aase, Anne H. Schistad Solberg   +3 more
openalex   +3 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, Sònia Nielles‐Vallespin, Peter Gatehouse, Marcel P. Jackowski, David Firmin, David E. Sosnovik   +5 more
openalex   +2 more sources

Duration of systole and diastole for hydrodynamic testing of prosthetic heart valves: comparison between ISO 5840 standards and in vivo studies

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

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, Mira Kang, Jiyeon Ahn, Min Young Kim, Min Sun Choi, You-Bin Lee, Gyuri Kim, Kyu Yeon Hur, Jae Hyeon Kim, Jeong Hoon Yang, Sang-Man Jin   +10 more
doaj   +1 more source