 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 13205 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8140
|
| In English (Mech. Solids): | | 5065 |
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| D.V. Ivanov and A.V. Dol, "Influence of the Internal Carotid Arteries Stenosis on the Hemodynamics of the Circle of Willis Communicating Arteries: a Numerical Study," Mech. Solids. 60 (2), 1329-1339 (2025) |
| Year |
2025 |
Volume |
60 |
Number |
2 |
Pages |
1329-1339 |
| DOI |
10.1134/S0025654425601028 |
| Title |
Influence of the Internal Carotid Arteries Stenosis on the Hemodynamics of the Circle of Willis Communicating Arteries: a Numerical Study |
| Author(s) |
D.V. Ivanov (Saratov State University, Saratov, 410012 Russia, ivanovdv.84@yandex.ru)
A.V. Dol (Saratov State University, Saratov, 410012 Russia, dolav86@yandex.ru) |
| Abstract |
Modern authors argue that carotid arteries stenosis leads to changes in blood flow in the circle of Willis, which may contribute to aneurysm formation. It was found that up to 3.2% of patients
with carotid arteries stenosis have associated aneurysms of the circle of Willis arteries. Moreover, it is
known that performing a surgical intervention to remove carotid stenoses can lead to a decrease in the
aneurysms size of the circle of Willis or their complete disappearance. In this regard, the problem
arises of studying effect of the carotid arteries stenosis on human brain vessels aneurysms development. In this work, a biomechanical study of the anterior communicating and posterior communicating arteries hemodynamics for various variants of the circle of Willis arteries structure in combination
with atherosclerotic plaques of carotid arteries was carried out. Based on computed angiography data,
45 models of the circle of Willis and carotid arteries with various degrees of stenosis and localization
of atherosclerotic plaques were constructed and analyzed. Numerical modeling of the unsteady blood
flow in the circle of Willis and carotid arteries was performed in Ansys CFX. Wall shear stress of the
anterior and posterior communicating arteries were analyzed, as well as mass blood flows along these
arteries. The influence of the carotid arteries stenosis degree, as well as their combination with anomalies in the circle of Willis on change in wall shear stresses and mass blood flows in communicating
arteries, was evaluated. The most dangerous combinations of the carotid arteries stenosis and types of
the cerebral arterial circle which increase the risk of developing communicating arteries aneurysms were identified. |
| Keywords |
aneurysm, Willis circle, carotid artery, wall shear stress, CFD |
| Received |
03 March 2025 | Revised |
25 March 2025 | Accepted |
26 March 2025 |
| Link to Fulltext |
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