ArticleScientific reports2024
Influence of circle of Willis modeling on hemodynamic parameters in anterior communicating artery aneurysms and recommendations for model selection.
Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed.
- Correlation between computational fluid dynamics-derived low wall shear stress and vessel wall enhancement on high-resolution MR vessel wall imaging in intracranial aneurysms.European radiology · 2026Article
- Association between the A1 Segment Asymmetry and Severe Clinical Presentation in Ruptured Anterior Communicating Artery Aneurysms.Neurologia medico-chirurgica · 2026Article
- Computational fluid dynamics assessment of altered hemodynamics in the Circle of Willis during acute ischemic stroke and the impact of cerebral collateral development.Biomechanics and modeling in mechanobiology · 2026Article
- An unusual variant of the anterior cerebral and anterior communicating arterial system: anatomical description with clinical and radiological implications.Surgical and radiologic anatomy : SRA · 2026Article
- Preliminary study on optimizing head position for endovascular treatment of anterior communicating artery aneurysms.Frontiers in neuroscience · 2026Article
- Neuromodulation of Cerebral Blood Flow: A Physiological Mechanism and Methodological Review of Neurovascular Coupling.Bioengineering (Basel, Switzerland) · 2025Review
- Impact of A1 segment asymmetry on hemodynamic conditions around the circle of Willis and anterior communicating artery aneurysm formation.Frontiers in neurology · 2024Article
- Identifying hemodynamic factors associated with the rupture of anterior communicating artery aneurysms based on global modeling of blood flow in the cerebral artery network.Frontiers in bioengineering and biotechnology · 2024Article
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7 authors.
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Abstract
Computational fluid dynamics (CFD) has been utilized to calculate hemodynamic parameters in anterior communicating artery aneurysm (AComA), which is located at a junction between left and right A1 and A2 segments. However, complete or half circle of Willis (CoW) models are used indiscriminately. This study aims to suggest recommendations for determining suitable CoW model. Five patient-specific CoW models with AComA were used, and each model was divided into complete, left-half, and right-half models. After validating the CFD using a flow experiment, the hemodynamic parameters and flow patterns in five AComAs were compared. In four out of five cases, inflow from one A1 side had a dominant influence on the AComA, while both left and right A1 sides affected the AComA in the remaining case. Also, the average difference in time-averaged wall shear stress between the complete and half models for four cases was 4.6%, but it was 62% in the other case. The differences in the vascular resistances of left and right A1 and A2 segments greatly influenced the flow patterns in the AComA. These results may help to enhance clinicians' understanding of blood flow in the brain, leading to improvements in diagnosis and treatment of cerebral aneurysms.
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