Growth History and Significant Events of Cerebral Aneurysm with Fluid-Structure Interaction Simulations

We analyzed the growth process of a single cerebral aneurysm using Fluid-Structure Interaction (FSI) simulations establishing a history including important events in morphology, hemodynamics as well as structural mechanics. Data of one patient was obtained between the years 2012 and 2022. The medical imaging data of these aneurysms was provided in the form of digital subtraction angiography, which was transformed into stereolithography format as geometry input. With the FSI simulations typical hemodynamic (wall shear stress, oscillatory shear index) and a structural mechanic quantity (Mises stress) were identified. With the addition of morphological parameters (Size, Volume, L2-norm of Gaussian curvature) significant changes can be found during the growth history of the selected aneurysm.