Multilevel and multifidelity uncertainty quantification for cardiovascular hemodynamics

CM Fleeter, G Geraci, DE Schiavazzi, AM Kahn… - Computer methods in …, 2020 - Elsevier
Standard approaches for uncertainty quantification in cardiovascular modeling pose
challenges due to the large number of uncertain inputs and the significant computational …

[HTML][HTML] The improvement of the shear stress and oscillatory shear index of coronary arteries during Enhanced External Counterpulsation in patients with coronary …

L Xu, X Chen, M Cui, C Ren, H Yu, W Gao, D Li… - PLoS …, 2020 - journals.plos.org
Background Enhanced External Counterpulsation (EECP) can chronically relieve ischemic
chest pain and improve the prognosis of coronary heart disease (CHD). Despite its role in …

Melting heat transfer enhancement of a horizontal latent heat storage unit by fern-fractal fins

Z Deng, S Wu, H Xu, Y Chen - Chinese Journal of Chemical Engineering, 2020 - Elsevier
The latent heat storage (LHS) technique is of crucial importance in chemical energy
engineering. Inspired by multi-bifurcated fern leaves, a mimic fern-fractal fin is designed to …

The effects of clinically‐derived parametric data uncertainty in patient‐specific coronary simulations with deformable walls

J Seo, DE Schiavazzi, AM Kahn… - International journal for …, 2020 - Wiley Online Library
Cardiovascular simulations are increasingly used for noninvasive diagnosis of
cardiovascular disease, to guide treatment decisions, and in the design of medical devices …

[HTML][HTML] Effects of mechanical dyssynchrony on coronary flow: insights from a computational model of coupled coronary perfusion with systemic circulation

L Fan, R Namani, JS Choy, GS Kassab… - Frontiers in …, 2020 - frontiersin.org
Mechanical dyssynchrony affects left ventricular (LV) mechanics and coronary perfusion.
Due to the confounding effects of their bi-directional interactions, the mechanisms behind …

Multifidelity estimators for coronary circulation models under clinically informed data uncertainty

J Seo, C Fleeter, AM Kahn, AL Marsden… - International Journal …, 2020 - dl.begellhouse.com
Numerical models are increasingly used for noninvasive diagnosis and treatment planning
in coronary artery disease, where service-based technologies have proven successful in …

Quantification of effects of mean blood pressure and left ventricular mass on noninvasive fast fractional flow reserve

JM Zhang, G Chandola, RS Tan… - American Journal …, 2020 - journals.physiology.org
Proper inlet boundary conditions are essential for accurate computational fluid dynamics
(CFD) modeling. We developed methodology to derive noninvasive FFRB using CFD and …

Allometric scaling patterns among the human coronary artery tree, myocardial mass, and coronary artery flow

JH Choi, E Kim, HY Kim, SH Lee… - Physiological reports, 2020 - Wiley Online Library
Human coronary artery tree is a physiological transport system for oxygen and vital materials
through a hierarchical vascular network to match the energy demands of myocardium, which …

[HTML][HTML] Influence of right coronary artery shape on TIMI frame count and lesion distribution

MS Altintas, N Ermis, B Cuglan, E Alturk… - Archivos de cardiología …, 2020 - scielo.org.mx
Background: The shape of the right coronary artery (RCA) may vary between individuals.
Objective: The aim of this study was to investigate whether the shape of RCA has any effect …

Using contrast motion to generate patient-specific blood flow simulations during invasive coronary angiography

S Zhuk, O Smith, V Thondapu… - Journal of …, 2020 - asmedigitalcollection.asme.org
Virtual fractional flow reserve (vFFR) is an emerging technology employing patient-specific
computational fluid dynamics (CFD) simulations to infer the hemodynamic significance of a …