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 contribution

4 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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Farnoush, A., Qian, Y., & Avolio, A. (2011). Effect of inflow on computational fluid dynamic simulation of cerebral bifurcation aneurysms. In N. Lovell (Ed.), Conference proceedings : 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (pp. 1025-1028). [6090238] Piscataway, N.J.: Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/IEMBS.2011.6090238