• Journal of the Korean Society for Precision Engineering
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• v.19 no.4
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• pp.34-43
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• 2002

• Journal of Biomedical Engineering Research
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• v.22 no.6
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• pp.535-542
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• 2001

Endovascular embolization technique using a steno is currently used to treat the wide neck aneurysm. Since intraaneurysmal flow characteristics affect thrombus formation and embolisation process. flow visualization technique incorporating photochromic dye was used to elucidate hemodynamic changes by stenting Inside the fusiform aneurysm models. Qualitative observation of flow field and measurement of wall shear rates were Performed at five aneurysm wall locations under pulsatile flow. Intraaneurysmal flow motion was reduced and sluggish vortical motion was maintained during late deceleration phase by stenting. Also wall shear rates were reduced and OSI's were increased in the stented model. These flow characteristics Provide hemodynamic environment favorable for thrombus formation and intimal hyperplasia. The results of this study show hemodynamic changes by stenting Promote thrombus formation and aneurysm embolisation.