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This article is cited in 5 scientific papers (total in 5 papers)
On the impact of flow-diverters on the hemodynamics of human cerebral aneurysms
D. V. Parshinab, Yu. O. Kuyanovaab, D. S. Kislitsinc, U. Windbergerd, A. P. Chupakhinab a Lavrentyev Institute of Hydrodynamics of Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
b Novosibirsk National Research State University, Novosibirsk, 630090, Russia
c Meshalkin National Medical Research Center, Novosibirsk, 630055, Russia
d Center for Biomedical Research Vienna Medical University, Vienna, 1090, Austria
Abstract:
The impact of flow-diverters used in the treatment of cerebral aneurysm on human brain hemodynamics was evaluated qualitatively and quantitatively. Numerical simulation of flow-diverter placement in cerebral vessels with aneurysms for the case history of a real patient was carried out with the commercial ANSYS 17.2 package, using different (Newtonian and non-Newtonian) hydrodynamic models of blood rheology in different parts of the vessel and aneurysm, according to experimental data. It is shown that after flow-diverter placement, the blood flow through the artery segment containing the aneurysm neck decreases, resulting in a redistribution of the cerebral blood flow, which becomes close to a healthy bloodstream. Changes in wall tangential stresses in the flow-diverter region are indicative of possible aneurysm recanalization.
Keywords:
cerebral aneurysm, flow-diverter, brain hemodynamics, reconstruction of DICOM images, non-Newtonian blood rheology.
Received: 26.03.2018
Citation:
D. V. Parshin, Yu. O. Kuyanova, D. S. Kislitsin, U. Windberger, A. P. Chupakhin, “On the impact of flow-diverters on the hemodynamics of human cerebral aneurysms”, Prikl. Mekh. Tekh. Fiz., 59:6 (2018), 5–14; J. Appl. Mech. Tech. Phys., 59:6 (2018), 963–970
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https://www.mathnet.ru/eng/pmtf496 https://www.mathnet.ru/eng/pmtf/v59/i6/p5
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