Key result
Carotid simulations link reduced shear stress and increased suction to peak LDL concentration at 40% stenosis.
Why the study?
The study aimed to investigate LDL particle mass transport in arteries with permeable walls and stenosis under steady state conditions for Newtonian and non-Newtonian fluids.
Population
Numerical model of human carotid artery with permeable wall and up to 60% stenosis
Comparison
Newtonian fluid vs non-Newtonian fluid simulations
Design
Numerical simulation study under steady state conditions
Authors
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May refine LDL transport models in atherosclerosis; leaves open in vivo validation and clinical relevance.
Numerical simulations demonstrate that LDL concentration polarization peaks at 40% stenosis in the carotid artery, exacerbated by high wall suction velocity and low wall shear stress.
Nematollahi et al. (2012) studied Carotid artery stenosis. Numerical simulation of LDL particles mass transport was evaluated on Lumen Surface Concentration (LSC) of Low Density Lipoprotein (LDL) particles. Numerical simulation of LDL mass transport in carotid arteries showed that increased wall suction velocity and reduced wall shear stress increased lumen surface concentration, peaking at 40% stenosis.
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