2013 Fiscal Year Final Research Report
Development of computational techniques for the preoperative evaluation of endovascular treatment of cerebral aneurysms and its application to realistic geometries
| Project/Area Number |
23791438
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Radiation science
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| Research Institution | University of Hyogo |
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Principal Investigator |
SHIMOGONYA Yuji 兵庫県立大学, 工学(系)研究科(研究院), 助教 (30552575)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 脳動脈瘤 / 血管内治療 / ステント / 血流 / 血行力学 / 計算流体力学 |
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| Research Abstract |
The influences of the cerebral aneurysm location relative to its parent artery and the stent rotation angle in endovascular treatments with a flow diverter-type stent on inflow into aneurysm were examined using 3D geometric modeling and computational fluid dynamics techniques. In the former examination, the inflow into aneurysm was elevated for the cerebral aneurysm located laterally to the parent artery path due to a secondary flow effect. In the later examination, a striking change in the inflow into aneurysm via local alterations of flow field was observed in a certain combination of the cerebral aneurysm location and the stet rotation angle, regardless of small changes in the aperture ratio with varying angles of stent rotation.
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