Effect of saccular aneurysm and parent artery morphology on hemodynamics of cerebral bifurcation aneurysms

A. Farnoush*, Y. Qian, H. Takao, Y. Murayama, A. Avolio

*Corresponding author for this work

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

    1 Citation (Scopus)

    Abstract

    Morphological descriptors of aneurysms have been used to assess aneurysm rupture. This study investigated the relation between the morphological parameters and the flow related parameter of energy loss (EL). Four size indices and one shape index were assessed in idealized middle cerebral artery models with various aneurysm morphologies. Four patient-specific aneurysms (2 ruptured, 2 unruptured) were virtually manipulated by removing the aneurysms from their parent arteries and merging them with the idealized bifurcation models. EL was calculated from the energy difference between inflow and outflow. The results indicate that among size indices, EL is mostly dependent on bottleneck factor and less dependent on the aspect ratio. Results also showed that there is a direct relationship between nonsphericity index (NSI) and EL in manipulated models. No specific correlation was found between EL and NSI in patient-specific models.

    Original languageEnglish
    Title of host publication2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2012
    EditorsNigel Lovell
    Place of PublicationPiscataway, N.J.
    PublisherInstitute of Electrical and Electronics Engineers (IEEE)
    Pages6677-6680
    Number of pages4
    Volume2012
    ISBN (Electronic)9781457717871 , 9781424441204
    ISBN (Print)9781424441198
    DOIs
    Publication statusPublished - Sep 2012
    Event34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2012 - San Diego, CA, United States
    Duration: 28 Aug 20121 Sep 2012

    Publication series

    NameProceedings of the annual international conference of the IEEE Engineering in Medicine and Biology Society
    PublisherIEEE
    ISSN (Print)1094-687X
    ISSN (Electronic)1557-170X

    Other

    Other34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2012
    CountryUnited States
    CitySan Diego, CA
    Period28/08/121/09/12

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