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Paper Abstract and Keywords
Presentation 2018-08-10 13:55
Droplet Formation Simulation for Cerebral Aneurysm Embolization
Takuya Natsume (Tokyo City Univ.), Masamichi Oishi (Univ of Tokyo), Nobuhiko Mukai (Tokyo City Univ.), Marie Oshima (Univ of Tokyo)
Abstract (in Japanese) (See Japanese page) 
(in English) Although liquid embolization is performed in overseas as a preventive surgical procedure for subarachnoid hemorrhage caused by rupture of a cerebral aneurysm, it is unauthorized in Japan for the sake of safety. Then, the authors developed droplet formation simulation using particle method for its safety verification. The embolic material used in liquid embolization is highly viscous compared to water, so that reducing the simulation time step is necessary according to von Neumann condition. Otherwise, it takes a lot of time to analyze. Therefore, in this study, the viscous term is implicitly solved and the simulation time is reduced. Finally a simulation has been performed, where an embolic material is injected into a water tank that mimics a cerebral aneurysm through a circular tube that imitates a catheter. In addition, we have confirmed that a droplet has been formed, which was similar to the experimental result.
Keyword (in Japanese) (See Japanese page) 
(in English) Physical Simulation / Numerical Fluid Analysis / Particle Method / Cerebral Aneurysm Embolization / / / /  
Reference Info. ITE Tech. Rep., vol. 42, no. 26, AIT2018-169, pp. 65-68, Aug. 2018.
Paper # AIT2018-169 
Date of Issue 2018-08-02 (AIT) 
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
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Conference Information
Committee IIEEJ AIT  
Conference Date 2018-08-09 - 2018-08-10 
Place (in Japanese) (See Japanese page) 
Place (in English) Shinshu Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To AIT 
Conference Code 2018-08-IIEEJ-AIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Droplet Formation Simulation for Cerebral Aneurysm Embolization 
Sub Title (in English)  
Keyword(1) Physical Simulation  
Keyword(2) Numerical Fluid Analysis  
Keyword(3) Particle Method  
Keyword(4) Cerebral Aneurysm Embolization  
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1st Author's Name Takuya Natsume  
1st Author's Affiliation Tokyo City University (Tokyo City Univ.)
2nd Author's Name Masamichi Oishi  
2nd Author's Affiliation Institute of Industrial Science, The University of Tokyo (Univ of Tokyo)
3rd Author's Name Nobuhiko Mukai  
3rd Author's Affiliation Tokyo City University (Tokyo City Univ.)
4th Author's Name Marie Oshima  
4th Author's Affiliation Institute of Industrial Science, The University of Tokyo (Univ of Tokyo)
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Speaker
Date Time 2018-08-10 13:55:00 
Presentation Time 25 
Registration for AIT 
Paper # ITE-AIT2018-169 
Volume (vol) ITE-42 
Number (no) no.26 
Page pp.65-68 
#Pages ITE-4 
Date of Issue ITE-AIT-2018-08-02 


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