Vitaliy L. Rayz1, Gabriel Acevedo-Bolton1, Joseph R. Leach2, Petter Dyverfeldt1, Van Halbach1, David Saloner1
1Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, United States; 2University of California San Francisco, United States
MRI data were used for numerical modeling after deployment of a flow-diverting stent in a giant cerebral aneurysm. A patient-specific silicone model of the aneurysm was constructed from MRA and the stent was deployed in this phantom. Computations of the flow prior to and post the procedure were carried out and validated with 4D PC-MRI measurements. The transport of contrast through the model was numerically simulated and compared to DSA cine images acquired during the procedure. The results indicate that computational models based on MRI data can be used to evaluate the efficacy of flow-diverting stents on a patient-specific basis.