What does this research mean for the field?

Increasing morphological complexity in carotid fibromuscular dysplasia subjects the artery to progressively adverse hemodynamic and mechanical forces, such as elevated wall shear stress and oscillatory shear index, which likely promote endothelial dysfunction and disease progression. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The study examines the biomechanical behavior of the carotid artery in patients with fibromuscular dysplasia (FMD).

July 23, 2026Biomechanics and Modeling in MechanobiologyOpen Access

Carotid FMD models exhibit increased velocities and shear stresses versus healthy geometries, indicating adverse hemodynamics.

Q: What is the clinical evidence from this study?

Study design: Other. Population: Carotid fibromuscular dysplasia. Intervention: Carotid fibromuscular dysplasia (FMD) phenotypes vs. Healthy carotid geometry. Primary outcome: Haemodynamic biomarkers and biomechanical wall responses.

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Why the study?

Carotid FMD is characterized by segmental disruptions in arterial wall architecture without inflammatory or atherosclerotic pathology, making hemodynamic evaluation crucial for identifying meaningful biomechanical biomarkers.

Population

Patient-specific vascular geometries across healthy, focal, non-focal, and severe non-focal carotid types

Comparison

Focal, non-focal, and severe non-focal carotid FMD geometries vs healthy carotid geometry

Design

Two-way coupled 3D fluid-structure interaction computational simulation study

Key result

Carotid fibromuscular dysplasia models exhibited increased velocities, wall shear stresses, and oscillatory shear indices compared to healthy geometries, indicating adverse haemodynamics.

Authors

KMKaveh Moghadasi GMGhayesh MH EHEric Hu

Discussion

Member takes

Overview

May identify biomechanical biomarkers in carotid FMD; leaves open their clinical utility pending validation.

Key Points

The study examines the biomechanical behavior of the carotid artery in patients with fibromuscular dysplasia (FMD).
Developed a two-way coupled three-dimensional fluid-structure interaction (FSI) model.
Integrated patient-specific vascular geometries and non-Newtonian turbulent blood flow.
Analyzed haemodynamic biomarkers and biomechanical responses across different carotid FMD types.
FMD cases showed increased velocities and wall shear stresses with decreased pressure gradients at the distal end.
Elevated oscillatory shear index (OSI) and relative residence time (RRT) noted in all FMD models.
Non-focal phenotypes exhibited the largest radial deformation, while focal configurations experienced the highest von-Mises stresses.

Structured PICO

Population

Patient-specific vascular geometries representing healthy, focal, non-focal, and severe non-focal carotid fibromuscular dysplasia (FMD)

Exposure

Two-way coupled three-dimensional (3D) fluid-structure interaction (FSI) modeling

Comparator

Healthy carotid geometry

Outcome

Haemodynamic biomarkers and biomechanical wall responses (velocities, wall shear stresses, pressure gradients, OSI, RRT, radial deformation, von-Mises stresses)surrogate

Computational fluid-structure interaction modeling demonstrates that increasing morphological complexity in carotid FMD leads to progressively adverse haemodynamics and mechanical forces.

Cite This Study

Moghadasi et al. (2026) studied Carotid fibromuscular dysplasia. Carotid fibromuscular dysplasia (FMD) phenotypes vs. Healthy carotid geometry was evaluated on Haemodynamic biomarkers and biomechanical wall responses. Carotid fibromuscular dysplasia models exhibited increased velocities, wall shear stresses, and oscillatory shear indices compared to healthy geometries, indicating adverse haemodynamics.

synapsesocial.com/papers/6a61b004faa9903c5116aac9 https://doi.org/10.1007/s10237-026-02099-x

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July 23, 2026Biomechanics and Modeling in MechanobiologyOpen Access

Carotid FMD models exhibit increased velocities and shear stresses versus healthy geometries, indicating adverse hemodynamics.

View Full Paper

Ask AI

Bookmark

Why the study?

Population

Patient-specific vascular geometries across healthy, focal, non-focal, and severe non-focal carotid types

Comparison

Focal, non-focal, and severe non-focal carotid FMD geometries vs healthy carotid geometry

Design

Two-way coupled 3D fluid-structure interaction computational simulation study

Key result

Carotid fibromuscular dysplasia models exhibited increased velocities, wall shear stresses, and oscillatory shear indices compared to healthy geometries, indicating adverse haemodynamics.

Authors

KMKaveh Moghadasi GMGhayesh MH EHEric Hu

Discussion

Member takes

Overview

May identify biomechanical biomarkers in carotid FMD; leaves open their clinical utility pending validation.

Key Points

The study examines the biomechanical behavior of the carotid artery in patients with fibromuscular dysplasia (FMD).
Developed a two-way coupled three-dimensional fluid-structure interaction (FSI) model.
Integrated patient-specific vascular geometries and non-Newtonian turbulent blood flow.
Analyzed haemodynamic biomarkers and biomechanical responses across different carotid FMD types.
FMD cases showed increased velocities and wall shear stresses with decreased pressure gradients at the distal end.
Elevated oscillatory shear index (OSI) and relative residence time (RRT) noted in all FMD models.
Non-focal phenotypes exhibited the largest radial deformation, while focal configurations experienced the highest von-Mises stresses.

Structured PICO

Population

Patient-specific vascular geometries representing healthy, focal, non-focal, and severe non-focal carotid fibromuscular dysplasia (FMD)

Exposure

Two-way coupled three-dimensional (3D) fluid-structure interaction (FSI) modeling

Comparator

Healthy carotid geometry

Outcome

Haemodynamic biomarkers and biomechanical wall responses (velocities, wall shear stresses, pressure gradients, OSI, RRT, radial deformation, von-Mises stresses)surrogate

Computational fluid-structure interaction modeling demonstrates that increasing morphological complexity in carotid FMD leads to progressively adverse haemodynamics and mechanical forces.

Cite This Study

synapsesocial.com/papers/6a61b004faa9903c5116aac9 https://doi.org/10.1007/s10237-026-02099-x

Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

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