期刊
JOURNAL OF APPLIED MECHANICS AND TECHNICAL PHYSICS
卷 59, 期 6, 页码 963-970出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0021894418060019
关键词
cerebral aneurysm; flow-diverter; brain hemodynamics; reconstruction of DICOM images; non-Newtonian blood rheology
资金
- Ministry of Education and Science of the Russian Federation [14, W03.31.0002]
The impact of flow-diverters used for cerebral aneurysm treatment on human brain hemodynamics was evaluated qualitatively and quantitatively. Numerical simulation of flow-diverter placement in cerebral vessels with aneurysms was carried out for the case history of a real patient using the commercial ANSYS 17.2 package with different (Newtonian and non-Newtonian) hydrodynamic models for blood rheology in different parts of the vessel and aneurysm, which is due to experimental data. It is shown that after flow-diverter placement, the blood flow through the artery segment containing the aneurysm neck decreases, resulting in a redistribution of the cerebral blood flow, which becomes close to the blood flow in healthy subjects. Changes in wall shear stresses in the flow-diverter region are indicative of possible aneurysm recanalization.
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