Influence of stent-induced vessel deformation on hemodynamic feature of bloodstream inside ICA aneurysms
Artikel i vetenskaplig tidskrift, 2023

One of the effective treatment options for intracranial aneurysms is stent-assisted coiling. Though, previous works have demonstrated that stent usage would result in the deformation of the local vasculature. The effect of simple stent on the blood hemodynamics is still uncertain. In this work, hemodynamic features of the blood stream on four different ICA aneurysm with/without interventional are investigated. To estimate the relative impacts of vessel deformation, four distinctive ICA aneurysm is simulated by the one-way FSI technique. Four hemodynamic factors of aneurysm blood velocity, wall pressure and WSS are compared in the peak systolic stage to disclose the impact of defamation by the stent in two conditions. The stent usage would decrease almost all of the mentioned parameters, except for OSI. Stenting reduces neck inflow rate, while the effect of interventional was not consistent among the aneurysms. The deformation of an aneurysm has a strong influence on the hemodynamics of an aneurysm. This outcome is ignored by most of the preceding investigations, which focused on the pre-interventional state for studying the relationship between hemodynamics and stents. Present results show that the application of stent without coiling would improve most hemodynamic factors, especially when the deformation of the aneurysm is high enough.

Cerebral aneurysm

CFD

Blood Rheology

Viscous flow

Polymer Stent

Lateral ICA

Författare

Amir Sabernaeemi

Student vid Chalmers

M. Barzegar Gerdroodbary

Babol Noshirvani University of Technology (BNUT)

Sajad Salavatidezfouli

Scuola Internazionale Superiore di Studi Avanzati

Peiman Valipour

Islamic Azad University

Biomechanics and Modeling in Mechanobiology

1617-7959 (ISSN) 16177940 (eISSN)

Vol. 22 4 1193-1207

Ämneskategorier

Teknisk mekanik

Annan medicinteknik

Medicinsk bildbehandling

DOI

10.1007/s10237-023-01710-9

PubMed

36947349

Mer information

Senast uppdaterat

2024-03-07