Blood flow analysis in carotid artery bifurcation by two-dimensional ultrasonic-measurement-integrated simulation
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- KADOWAKI Hiroko
- Graduate School of Engineering, Tohoku University
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- HAYASE Toshiyuki
- Institute of Fluid Science, Tohoku University
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- FUNAMOTO Kenichi
- Institute of Fluid Science, Tohoku University
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- SONE Shusaku
- Graduate School of Biomedical Engineering, Tohoku University
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- SHIMAZAKI Tadashi
- GE Healthcare Japan
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- JIBIKI Takao
- GE Healthcare Japan
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- MIYAMA Koji
- GE Healthcare Japan
Abstract
If highly precise elucidation of the blood flow characteristics in a carotid bifurcation was possible, it would be widely applicable to diagnosis of circulatory diseases such as arteriosclerosis and cerebrovascular disease. This study was conducted to establish a new flow-dividing ratio estimation method applicable to an unsteady flow on a two-dimensional ultrasonic-measurement-integrated simulation of a carotid artery bifurcation for which it has been previously difficult to obtain a stable solution. In this new method, the flow-dividing ratio was directly adjusted by specifying the flow rate in a branch so that the difference of the Doppler velocities in the external carotid artery was decreased. The effectiveness of the proposed method was confirmed by a numerical experiment using the actual shape of a carotid artery bifurcation, and the superiority of the two-dimensional ultrasonic-measurement-integrated simulation over the ordinary simulation in terms of the reproducibility of the blood flow structure was clarified by analysis using clinical ultrasound data.
Journal
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- Journal of Biomechanical Science and Engineering
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Journal of Biomechanical Science and Engineering 10 (1), 14-00266-14-00266, 2015
The Japan Society of Mechanical Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1390282680239388032
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- NII Article ID
- 130004691140
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- ISSN
- 18809863
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed
