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

A. Farnoush; Y. Qian; A. Avolio

doi:10.1109/IEMBS.2011.6090238

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 proceeding › Conference proceeding contribution › peer-review

8 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 language	English
Title of host publication	Conference proceedings : 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Editors	Nigel Lovell
Place of Publication	Piscataway, N.J.
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1025-1028
Number of pages	4
ISBN (Electronic)	9781457715891 , 9781424441228
ISBN (Print)	9781424441211
DOIs	https://doi.org/10.1109/IEMBS.2011.6090238
Publication status	Published - Sep 2011
Event	The Annual International Conference of the IEEE Engineering in Medicine and Biology Society - 2011 - Boston, MA, United States Duration: 30 Aug 2011 → 3 Sep 2011

Other

Other	The Annual International Conference of the IEEE Engineering in Medicine and Biology Society - 2011
Country/Territory	United States
City	Boston, MA
Period	30/08/11 → 3/09/11

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10.1109/IEMBS.2011.6090238

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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] Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/IEMBS.2011.6090238

Farnoush, A. ; Qian, Y. ; Avolio, A. / Effect of inflow on computational fluid dynamic simulation of cerebral bifurcation aneurysms. Conference proceedings : 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society. editor / Nigel Lovell. Piscataway, N.J. : Institute of Electrical and Electronics Engineers (IEEE), 2011. pp. 1025-1028

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title = "Effect of inflow on computational fluid dynamic simulation of cerebral bifurcation aneurysms",

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.",

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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., 6090238, Institute of Electrical and Electronics Engineers (IEEE), Piscataway, N.J., pp. 1025-1028, The Annual International Conference of the IEEE Engineering in Medicine and Biology Society - 2011, Boston, MA, United States, 30/08/11. https://doi.org/10.1109/IEMBS.2011.6090238

Effect of inflow on computational fluid dynamic simulation of cerebral bifurcation aneurysms. / Farnoush, A.; Qian, Y.; Avolio, A.

Conference proceedings : 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society. ed. / Nigel Lovell. Piscataway, N.J. : Institute of Electrical and Electronics Engineers (IEEE), 2011. p. 1025-1028 6090238.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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AU - Avolio, A.

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N2 - 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.

AB - 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.

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

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

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