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Influence of blood viscosity models and boundary conditions on the computation of hemodynamic parameters in cerebral aneurysms using computational fluid dynamics

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dc.contributor.author김용배-
dc.contributor.author조광천-
dc.date.accessioned2024-05-30T07:14:33Z-
dc.date.available2024-05-30T07:14:33Z-
dc.date.issued2023-02-
dc.identifier.issn0001-6268-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/199660-
dc.description.abstractBackground Computational fluid dynamics (CFD) is widely used to calculate hemodynamic parameters that are known to influence cerebral aneurysms. However, the boundary conditions for CFD are chosen without any specific criteria. Our objective is to establish the recommendations for setting the analysis conditions for CFD analysis of the cerebral aneurysm. Method The plug and the Womersley flow were the inlet boundary conditions, and zero and pulsatile pressures were the outlet boundary conditions. In addition, the difference in the assumption of viscosity was analyzed with respect to the flow rate. The CFD process used in our research was validated using particle image velocimetry experiment data from Tupin et al.'s work to ensure the accuracy of the simulations. Results It was confirmed that if the entrance length was sufficiently secured, the inlet and outlet boundary conditions did not affect the CFD results. In addition, it was observed that the difference in the hemodynamic parameter between Newtonian and non-Newtonian fluid decreased as the flow rate increased. Furthermore, it was confirmed that similar tendencies were evaluated when these recommendations were utilized in the patient-specific cerebral aneurysm models. Conclusions These results may help conduct standardized CFD analyses regardless of the research group.-
dc.description.statementOfResponsibilityrestriction-
dc.languageEnglish-
dc.publisherSpringer-
dc.relation.isPartOfACTA NEUROCHIRURGICA-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.subject.MESHBlood Flow Velocity-
dc.subject.MESHBlood Viscosity-
dc.subject.MESHComputer Simulation-
dc.subject.MESHHemodynamics-
dc.subject.MESHHumans-
dc.subject.MESHHydrodynamics-
dc.subject.MESHIntracranial Aneurysm*-
dc.subject.MESHModels, Cardiovascular-
dc.titleInfluence of blood viscosity models and boundary conditions on the computation of hemodynamic parameters in cerebral aneurysms using computational fluid dynamics-
dc.typeArticle-
dc.contributor.collegeCollege of Medicine (의과대학)-
dc.contributor.departmentDept. of Neurosurgery (신경외과학교실)-
dc.contributor.googleauthorHyeondong Yang-
dc.contributor.googleauthorIneui Hong-
dc.contributor.googleauthorYong Bae Kim-
dc.contributor.googleauthorKwang-Chun Cho-
dc.contributor.googleauthorJe Hoon Oh-
dc.identifier.doi10.1007/s00701-022-05467-5-
dc.contributor.localIdA00743-
dc.contributor.localIdA05416-
dc.relation.journalcodeJ00018-
dc.identifier.eissn0942-0940-
dc.identifier.pmid36624234-
dc.identifier.urlhttps://link.springer.com/article/10.1007/s00701-022-05467-5-
dc.subject.keywordAnalysis conditions-
dc.subject.keywordBlood viscosity model-
dc.subject.keywordCerebral aneurysm-
dc.subject.keywordComputational fluid dynamics-
dc.subject.keywordHemodynamic parameter-
dc.contributor.alternativeNameKim, Yong Bae-
dc.contributor.affiliatedAuthor김용배-
dc.contributor.affiliatedAuthor조광천-
dc.citation.volume165-
dc.citation.number2-
dc.citation.startPage471-
dc.citation.endPage482-
dc.identifier.bibliographicCitationACTA NEUROCHIRURGICA, Vol.165(2) : 471-482, 2023-02-
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers

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