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Brain Science Advances 2017, 3(4): 229-236 https://doi.org/10.18679/CN11-6030_R.2017.034
Review Article | Open Access | Issue | Published: 01 December 2017

Hemodynamic consideration of intracranial aneurysm

Show Author's Information Hiroshi Ujiie1,2( ),  Chie Shinohara3,  Yoshinori Tamano4,  Kouichi Katou1,  Akira Teramoto1
Department of Neurosurgery, Tokyo Rosai Hospital, 4-13-21 Omori-minami, Ota-city, Tokyo 143-0013, Japan
Department of Neurosurgery, Blue–sky Matsui Hospital, 739 Muraguro-cho, Kanonji-shi, Kagawa-ken 768-0013, Japan
Department of Neurosurgery, Narita Tomisato Tokusyukai Hospital, 1-1-1 Hiyoshidai, Tomisato-shi, Chiba-ken 286-0201, Japan
Department of Neurosurgery, Koshigaya Neurosurgical Clinic, 5-7 Gamoukotobuki-cho, Koshigaya-shi, Saitama-ken 343-0836, Japan
Keywords:
computational fluid dynamics, intracranial aneurysm, subarachnoid hemorrhage, shear stress, partial epilepsy middle cerebral artery, internal carotid artery, anterior cerebral artery
Cite this article:
Ujiie H, Shinohara C, Tamano Y, et al. Hemodynamic consideration of intracranial aneurysm. Brain Science Advances, 2017, 3(4): 229-236. https://doi.org/10.18679/CN11-6030_R.2017.034
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Abstract Full text About this article

We reviewed basic considerations in fluid dynamics of cerebral aneurysms and applied these in surgery on the three most common types: internal carotid-posterior communicating artery, middle cerebral artery, and anterior communicating artery. It was found that aneurysmal initiation and growth do not occur at symmetric bifurcations. As blood flow always obeys the law of inertia, jet flow into the aneurysm will disperse along the wall; assuming the aneurysmal wall strength is even, the shape of the aneurysm becomes round or oval. When neurosurgeons encounter an aneurysm that is not round or oval, the wall may be fragile and requires great care during surgical manipulation.


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About this article

Hemodynamic consideration of intracranial aneurysm

Show Author's information Hiroshi Ujiie1,2( ), Chie Shinohara3, Yoshinori Tamano4, Kouichi Katou1, Akira Teramoto1
Department of Neurosurgery, Tokyo Rosai Hospital, 4-13-21 Omori-minami, Ota-city, Tokyo 143-0013, Japan
Department of Neurosurgery, Blue–sky Matsui Hospital, 739 Muraguro-cho, Kanonji-shi, Kagawa-ken 768-0013, Japan
Department of Neurosurgery, Narita Tomisato Tokusyukai Hospital, 1-1-1 Hiyoshidai, Tomisato-shi, Chiba-ken 286-0201, Japan
Department of Neurosurgery, Koshigaya Neurosurgical Clinic, 5-7 Gamoukotobuki-cho, Koshigaya-shi, Saitama-ken 343-0836, Japan

Abstract

We reviewed basic considerations in fluid dynamics of cerebral aneurysms and applied these in surgery on the three most common types: internal carotid-posterior communicating artery, middle cerebral artery, and anterior communicating artery. It was found that aneurysmal initiation and growth do not occur at symmetric bifurcations. As blood flow always obeys the law of inertia, jet flow into the aneurysm will disperse along the wall; assuming the aneurysmal wall strength is even, the shape of the aneurysm becomes round or oval. When neurosurgeons encounter an aneurysm that is not round or oval, the wall may be fragile and requires great care during surgical manipulation.

Keywords: computational fluid dynamics, intracranial aneurysm, subarachnoid hemorrhage, shear stress, partial epilepsy middle cerebral artery, internal carotid artery, anterior cerebral artery

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Publication history
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Publication history

Received: 26 May 2017
Revised: 20 November 2017
Accepted: 29 November 2017
Published: 01 December 2017
Issue date: December 2017

Copyright

© The authors 2017.

Acknowledgements

Thanks are due to Professor Yoshihiro Iwata for his kind advice in preparing this manuscript.

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This article is published with open access at www.TNCjournal.com

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