Key result
In a patient-specific simulation, carotid plaque increased peak velocity from 0.3 to 0.7 m/s and expanded the vessel area at risk for disease (TAWSS < 0.4 Pa) from 8.3% to 20%.
Why the study?
Atherosclerosis arises from complex interactions between hemodynamic factors and vascular biology, causing luminal narrowing that impairs blood supply.
Population
Patient-specific 3D CT-based model of a stenosis carotid artery and its digitally created healthy counterpart
Comparison
Stenosis carotid artery model vs digitally created healthy counterpart model
Design
Two-way fluid-structure interaction numerical simulation study
Authors
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Alters carotid hemodynamics in ways that may promote further disease; hypothesis-generating in animal models and leaves open human translation.
Absolute Event Rate: 20% vs 8.3%
Patient-specific fluid-structure interaction simulations reveal that carotid plaques significantly alter local hemodynamics, increasing peak velocity and oscillatory shear index, which may promote further atherosclerosis.
Aryan et al. (2025) studied Atherosclerosis. Atherosclerotic plaque (stenosis) vs. Digitally-created healthy counterpart was evaluated on Vessel area at risk for disease (TAWSS < 0.4 Pa). In a patient-specific simulation, carotid plaque increased peak velocity from 0.3 to 0.7 m/s and expanded the vessel area at risk for disease (TAWSS < 0.4 Pa) from 8.3% to 20%.
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