Hemodynamic Change in A Cerebral Aneurysm Treated by Double Stenting Technique

Yuya Uchiyama, Hiroyuki Takao, Takashi Suzuki, Soichiro Fujimura, Kazutoshi Tanaka, Katharina Otani, Motoharu Hayakawa, Toshihiro Ishibashi, Koji Fukudome, Hiroya Mamori, Makoto Yamamoto, Yuichi Murayama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Rupture of cerebral aneurysms often causes subarachnoid hemorrhage which is a life-threatening condition with high mortality rates. Larger aneurysms are believed to be more likely to rupture and should therefore be treated. Recently, flow diverters (FDs) are widely used to treat large or wide neck aneurysms. However, it can be difficult to treat them by deployment of a single FD because of its insufficient flow disturbance. To overcome this problem, double stenting technique is sometimes applied with the aim to improve the effect of blood velocity reduction. In this study, we used computational fluid dynamics (CFD) to investigate the hemodynamic changes in an aneurysm when deploying virtual FDs. The results showed that the characteristics of the blood flow field inside the aneurysm did not changed much after the deployment of a single FD but underwent a large change after the deployment of two FDs. Furthermore, the velocity reduction in the aneurysm sac at a plane away from the parent artery increased from 25.9% to 92.8% when two FDs were deployed instead of one compared to no stenting. Double stenting was effective to decrease blood velocity in large or wide neck aneurysms.

Original languageEnglish
Title of host publication40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1343-1346
Number of pages4
ISBN (Electronic)9781538636466
DOIs
Publication statusPublished - 26-10-2018
Event40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2018 - Honolulu, United States
Duration: 18-07-201821-07-2018

Publication series

NameProceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
Volume2018-July
ISSN (Print)1557-170X

Conference

Conference40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2018
CountryUnited States
CityHonolulu
Period18-07-1821-07-18

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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  • Cite this

    Uchiyama, Y., Takao, H., Suzuki, T., Fujimura, S., Tanaka, K., Otani, K., Hayakawa, M., Ishibashi, T., Fukudome, K., Mamori, H., Yamamoto, M., & Murayama, Y. (2018). Hemodynamic Change in A Cerebral Aneurysm Treated by Double Stenting Technique. In 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2018 (pp. 1343-1346). [8512461] (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS; Vol. 2018-July). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EMBC.2018.8512461