Journal: Acta Neurochirurgica

Article Title: Improving rupture status prediction for intracranial aneurysms using wall shear stress informatics

doi: 10.1007/s00701-024-06404-4

Figure Lengend Snippet: An illustrative diagram showing steps involving “image-based” CFD simulations

Article Snippet: Fig. 3 An illustrative diagram showing steps involving “image-based” CFD simulations This study used a commercial CFD solver (Version 21, Fluent, Ansys Inc., PA, USA) to solve transient Navier-Stokes equations to compute blood flow velocity and WSS.

Techniques:

Journal: Computational and Mathematical Methods in Medicine

Article Title: Vortex Analysis of Intra-Aneurismal Flow in Cerebral Aneurysms

doi: 10.1155/2016/7406215

Figure Lengend Snippet: Vortex cores identified from two (SA4 and TA2) ANSYS-FLUENT-simulated cases (a and c) and the same cases using the Siemens LBM-simulated velocity fields from the Siemens CFD solver (b and d) under the same boundary conditions. Visual inspection ensured that main vortex core structures occurred in the same generalized location while Siemens CFD solver (b and d) resulted in a smoother core surface. Both cases had cores extracted using the same parameters: [normalized] Q ̿ -criterion; threshold is their mean of [normalized] Q ̿ , and only vortex cores with a volume > 0.5 mm 3 were saved. Each vortex core was extracted from the cycle-averaged vorticity data (per respective case).

Article Snippet: Vortex core results generated from the ANSYS-FLUENT and Siemens CFD solvers are summarized below.

Techniques:

Journal: Computational and Mathematical Methods in Medicine

Article Title: Vortex Analysis of Intra-Aneurismal Flow in Cerebral Aneurysms

doi: 10.1155/2016/7406215

Figure Lengend Snippet: Bland-Altman plots showing the relation between two CFD platform results: (a) a mean number of cores and (b) mean DVO. The directionality of the BA plots is the Siemens CFD values minus the ANSYS-FLUENT CFD values.

Article Snippet: Vortex core results generated from the ANSYS-FLUENT and Siemens CFD solvers are summarized below.

Techniques:

Journal: Computational and Mathematical Methods in Medicine

Article Title: Vortex Analysis of Intra-Aneurismal Flow in Cerebral Aneurysms

doi: 10.1155/2016/7406215

Figure Lengend Snippet: Vortex cores identified from two (SA4 and TA2) ANSYS-FLUENT-simulated cases (a and c) and the same cases using the Siemens LBM-simulated velocity fields from the Siemens CFD solver (b and d) under the same boundary conditions. Visual inspection ensured that main vortex core structures occurred in the same generalized location while Siemens CFD solver (b and d) resulted in a smoother core surface. Both cases had cores extracted using the same parameters: [normalized] Q ̿ -criterion; threshold is their mean of [normalized] Q ̿ , and only vortex cores with a volume > 0.5 mm 3 were saved. Each vortex core was extracted from the cycle-averaged vorticity data (per respective case).

Article Snippet: Therefore, resampling of the simulated velocity data was transformed onto a (3D) rectilinear grid, while the velocity data obtained from the Siemens research CFD solver was already on a rectilinear grid.

Techniques: