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Abstract #4753

MR-based modeling of interventions in basilar artery aneurysms

Vitaliy L Rayz 1 , Michael T Lawton 2 , Adib Abla 2 , Van Halbach 3 , Gabriel Acevedo-Bolton 1 , and David Saloner 1

1 Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, United States, 2 Neurosurgery, University of California San Francisco, San Francisco, CA, United States, 3 Neurointerventional Radiology, University of California San Francisco, San Francisco, CA, United States

Computational models constructed from PC-MRI and MRA data can be used to predict flow fields resulting from vascular interventions. Interventional treatment of basilar aneurysms is particularly challenging since these lesions cannot be completely removed from the circulation without sacrificing flow to the vital pontine perforators. We report on image-based, patient-specific flow simulations in vascular geometries resulting from alternative virtual surgeries on fusiform and giant aneurysms of the basilar artery. The effect of the proposed flow revisions on patency of the pontine perforators is evaluated by simulating virtual contrast transport. This information, available a priori, may be helpful in clinical decision-making.

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