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Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2024, Volume 65, Issue 6, Pages 125–146
DOI: https://doi.org/10.15372/PMTF202415540 (Mi pmtf9667) 		 
Uncertainty of boundary conditions and material model for pre-operative simulations: clinical case of rupture of a fusiform aneurysm of cerebral vessels

Yu. O. Kuyanovaa, A. K. Khea, K. S. Ovsyannikovb, A. V. Dubovoib, A. P. Chupakhina, D. V. Parshina

a Lavrentyev Institute of Hydrodynamics of Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
b Federal Neurosurgical Center, Novosibirsk, Russia
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DOI: https://doi.org/10.15372/PMTF202415540
Abstract: The influence of various individual and phantom boundary conditions on the results pre-operative numerical simulations of hemodynamics of a fusiform aneurysm of cerebral vessels is numerically simulated. It is found that allowance for individual mechanical properties of the aneurysm tissue affects the results of predicting the aneurysm status, but does not affect predicting the rupture zone, which can be detected by using the CFD approach under the assumption of rigid walls with phantom boundary conditions and with the condition of the maximum shear stresses on the wall as a criterion of rupture zone determination.
Keywords: cerebral aneurysm, rupture zone, aneurysm status, initial data, computational hemodynamics, FSI simulation.
Funding agency Grant number
Russian Science Foundation 20-71-10034
Ministry of Education and Science of the Russian Federation 14.W03.31.002
Numerical simulations and processing of clinical data were supported by the Russian Science Foundation (Grant No. 20-71-10034, https://rscf.ru/en/project/20-71-10034/). The results of the study were discussed with participation of A. P. Chupakhin within the framework of the Grant of the Government of the Russian Federation No. 14.W03.31.002.
Received: 04.06.2024
Revised: 22.07.2024
Accepted: 29.07.2024
English version:
Journal of Applied Mechanics and Technical Physics, 2024, Volume 65, Issue 6, Pages 1119–1139
DOI: https://doi.org/10.1134/S0021894424060105
Bibliographic databases:
Document Type: Article
UDC: 51-76, 612.133
Language: Russian
Citation: Yu. O. Kuyanova, A. K. Khe, K. S. Ovsyannikov, A. V. Dubovoi, A. P. Chupakhin, D. V. Parshin, “Uncertainty of boundary conditions and material model for pre-operative simulations: clinical case of rupture of a fusiform aneurysm of cerebral vessels”, Prikl. Mekh. Tekh. Fiz., 65:6 (2024), 125–146; J. Appl. Mech. Tech. Phys., 65:6 (2024), 1119–1139
Citation in format AMSBIB
\Bibitem{KuyKheOvs24}
\by Yu.~O.~Kuyanova, A.~K.~Khe, K.~S.~Ovsyannikov, A.~V.~Dubovoi, A.~P.~Chupakhin, D.~V.~Parshin
\paper Uncertainty of boundary conditions and material model for pre-operative simulations: clinical case of rupture of a fusiform aneurysm of cerebral vessels
\jour Prikl. Mekh. Tekh. Fiz.
\yr 2024
\vol 65
\issue 6
\pages 125--146
\mathnet{http://mi.mathnet.ru/pmtf9667}
\crossref{https://doi.org/10.15372/PMTF202415540}
\elib{https://elibrary.ru/item.asp?id=68580440}
\transl
\jour J. Appl. Mech. Tech. Phys.
\yr 2024
\vol 65
\issue 6
\pages 1119--1139
\crossref{https://doi.org/10.1134/S0021894424060105}
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