Investigation of effects of cerebrovascular morphogy on hemodynamics using image-based simulations

Marie Oshima; Kyohei Nagano; Ryo Torii; Kiyoshi Takagi; Motoharu Hayakawa

doi:10.1299/kikaia.70.1240

Investigation of effects of cerebrovascular morphogy on hemodynamics using image-based simulations

Marie Oshima, Kyohei Nagano, Ryo Torii, Kiyoshi Takagi, Motoharu Hayakawa

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

In the present study, an image-based simulation system has been developed in order to investigate the relationship between vascular morphology and cerebral hemodynamics. The simulation system consists of medical image based geometric modeling, grid generation, finite element fluid simulation, and scientific visualization. The paper has developed an effective smoothing method for over-tessellated polygonal surfaces by combining polygon reduction and smoothing techniques. The simulations are conducted for 19 cases of the bifurcation segment of middle cerebral artery branches. The multiple regression analysis is performed based based on 19 cases to examine the effects of cerebrovascular morphology on wall shear stresses. As a result, diamter of MCA, ratio of diamter of branching artery to that of MCA, and bifurcation angle between MCA and the branching artery are important morphological factors in determining the maximum wall shear stresses.

Original language	English
Pages (from-to)	1240-1246
Number of pages	7
Journal	Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume	70
Issue number	9
DOIs	https://doi.org/10.1299/kikaia.70.1240
Publication status	Published - 09-2004
Externally published	Yes

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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title = "Investigation of effects of cerebrovascular morphogy on hemodynamics using image-based simulations",

abstract = "In the present study, an image-based simulation system has been developed in order to investigate the relationship between vascular morphology and cerebral hemodynamics. The simulation system consists of medical image based geometric modeling, grid generation, finite element fluid simulation, and scientific visualization. The paper has developed an effective smoothing method for over-tessellated polygonal surfaces by combining polygon reduction and smoothing techniques. The simulations are conducted for 19 cases of the bifurcation segment of middle cerebral artery branches. The multiple regression analysis is performed based based on 19 cases to examine the effects of cerebrovascular morphology on wall shear stresses. As a result, diamter of MCA, ratio of diamter of branching artery to that of MCA, and bifurcation angle between MCA and the branching artery are important morphological factors in determining the maximum wall shear stresses.",

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Investigation of effects of cerebrovascular morphogy on hemodynamics using image-based simulations. / Oshima, Marie; Nagano, Kyohei; Torii, Ryo; Takagi, Kiyoshi; Hayakawa, Motoharu.

In: Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, Vol. 70, No. 9, 09.2004, p. 1240-1246.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Investigation of effects of cerebrovascular morphogy on hemodynamics using image-based simulations

AU - Oshima, Marie

AU - Nagano, Kyohei

AU - Torii, Ryo

AU - Takagi, Kiyoshi

AU - Hayakawa, Motoharu

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SN - 0387-5008

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Investigation of effects of cerebrovascular morphogy on hemodynamics using image-based simulations

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