Abstract
An approach to modelling hemodynamic alterations induced by flow-diverter placement in cerebral artery is proposed. Approach is based on the concept of multiscale model of hemodynamics, which utilized three types of models which are coupled together with corresponding boundary conditions. A patient-specific cerebral aneurysm was used for simulation studies. It was modelled two cases: pre-operational and post-operational with flow-diverter stent. The results showed that flow-diverter stent significantly alters intra-aneurysmal flow pattern. The major part of flow was diverted toward the normal direction along the parent artery. A stagnant flow in aneurysm sac was observed. Proposed approach could be used for planning of a treatment and for evaluation of risks in the post-treatment period for patients with cerebral aneurysm.
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