  Intracranial aneurysms are the leading cause of hemorrhagic stroke. One of
the established treatment approaches is the embolization induced by coil
insertion. However, the prediction of treatment and subsequent changed flow
characteristics in the aneurysm is still an open problem. In this work, we
present an approach based on a patient-specific geometry and parameters
including a coil representation as inhomogeneous porous medium. The model
consists of the volume-averaged Navier-Stokes equations for a non-Newtonian
blood rheology. We solve these equations using a problem-adapted lattice
Boltzmann method and present a comparison between fully-resolved and
volume-averaged simulations. The results indicate the validity of the model.
Overall, this workflow allows for patient specific assessment of the flow due
to potential treatment.
