Effect of inflow on computational fluid dynamic simulation of cerebral bifurcation aneurysms

A. Farnoush*, Y. Qian, A. Avolio

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

    6 Citations (Scopus)

    Abstract

    Morphological characteristics associated with cerebral aneurysm formation can be used to assess aneurysm rupture. This study investigated hemodynamic effects resulting from change in the parent artery diameter of bifurcation type aneurysm. Computational fluid dynamic (CFD) analysis was performed on middle cerebral artery (MCA) models with various parent artery diameters. Calculations were performed with steady flow rate (125±12.5 ml/min) at the parent artery inlet. Energy loss (EL) was calculated from pressure and kinetic energy obtained from flow velocity. The results indicate that the high wall shear stress (WSS) and EL occurs in model with the smallest parent vessel compared to the other models for all three inflows. Results also showed that 10% variation of inflow results in average of 23±2.9% changes in WSS and 25.5±0.5% changes in energy loss. These results demonstrated that for CFD analysis of MCA bifurcation type aneurysm, upstream parent vessel and inflow evaluation for individual patient is essential.

    Original languageEnglish
    Title of host publicationConference proceedings : 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society
    EditorsNigel Lovell
    Place of PublicationPiscataway, N.J.
    PublisherInstitute of Electrical and Electronics Engineers (IEEE)
    Pages1025-1028
    Number of pages4
    ISBN (Electronic)9781457715891 , 9781424441228
    ISBN (Print)9781424441211
    DOIs
    Publication statusPublished - Sep 2011
    EventThe Annual International Conference of the IEEE Engineering in Medicine and Biology Society - 2011 - Boston, MA, United States
    Duration: 30 Aug 20113 Sep 2011

    Other

    OtherThe Annual International Conference of the IEEE Engineering in Medicine and Biology Society - 2011
    CountryUnited States
    CityBoston, MA
    Period30/08/113/09/11

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