COMPUTATIONAL ANALYSIS OF BLOOD FLOW DYNAMICS IN CEREBRAL ANEURYSMS FROM CTA AND 3 D ROTATIONAL ANGIOGRAPHY IMAGE DATA

Detailed knowledge of the hemodynamics in cerebral aneurysms is valuable not only for understanding their formation and rupture but also for clinical evaluation and treatment. However, important hemodynamic quantities are difficult to measurein vivo. In this paper we present a methodology for modeling patient-specific blood flows in cerebral aneurysms that combines medical image analysis and finite element methods. Intracranial aneurysms are segmented from either CTA or 3D rotational angiography images using implicit deformable models. Unstructured grids are constructed from the segmented images and computational fluid dynamics analysis are performed under realistic pulsatile flow conditions.

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