Key result
The compliant carotid artery model reduced peak wall shear stress by 40% (1.4 Pa vs 2.3 Pa) compared to the rigid model, demonstrating that rigid boundaries severely overestimate peak wall shear stress.
Population
In-vitro experimental phantoms of rigid and compliant geometries representing an idealized common carotid…
Comparison
Compliant wall boundary model vs Rigid wall boundary model
Design
Preclinical
Authors
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Lack of experimental data for elastic-walled circulatory models persists; leaves open robust validation of computational FSI methods.
Effect estimate: 40% reduction
Absolute Event Rate: 1.4% vs 2.3%
Using rigid boundaries in arterial models severely overestimates peak wall shear stress compared to compliant models, highlighting the importance of compliance in protecting arteries from high magnitude WSS.
Geoghegan et al. (2016) studied Healthy carotid artery hemodynamics. Compliant arterial model vs. Rigid arterial model was evaluated on Maximum wall shear stress (WSS) in Pascals (40% reduction). The compliant carotid artery model reduced peak wall shear stress by 40% (1.4 Pa vs 2.3 Pa) compared to the rigid model, demonstrating that rigid boundaries severely overestimate peak wall shear stress.
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