Vitaliy L. Rayz1,
Gabriel Acevedo-Bolton1, Alastair J. Martin1, Van
Halbach2, David A. Saloner1
1Radiology
and Biomedical Imaging, University of California San Francisco, San
Francisco, CA, United States; 2Neurointerventional Radiology,
University of California San Francisco, San Francisco, CA, United States
Flow alterations resulting from vascular and endovascular interventions can be assessed with CFD models based on MRA and 4D PC-MRI data. In this study, preoperative and postoperative flow fields were simulated in 3 giant ICA aneurysms considered for treatment with flow-diverter stent in order to induce thrombotic occlusion of the lesions. Computations of the flow prior to and post the procedure were compared with in vivo and in vitro 4D PC-MRI measurements. The results indicate that computational models based on MRI/MRA data can be used to evaluate the efficacy of flow-diverting stents on a patient-specific basis.