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Computational Fluid Dynamics Challenge for Rupture-Prediction in Intracranial Aneurysms, Jun 2013, Germany

Posted By: Gabor Janiga
Date:Sat, 29 Jun 2013, 7:45 p.m.

Germany, June 29, 2013

Computational challenge in order to predict rupture in two intracranial



In the recent years various simulation challenges have been organized in order
to check the applicability of the computational hemodynamics for intracranial
aneurysms. Radaelli et al. [1] performed a comparison for virtually stented
patient-specific cases using flow diverters. Steinman et al. [2] compared the
velocity and pressure values obtained by various groups in a giant aneurysm.
One of the main difficulties when performing computational fluid dynamics
(CFD) for patient-specific cases is the prediction of the rupture probability.
The current challenge involves two patient-specific MCA-aneurysms that should
be analyzed by CFD in a blind test. One of the provided data sets corresponds
to a ruptured aneurysm, while the other one can be considered as unruptured.
The ruptured case is documented with intra-operative video recording.
Therefore, the exact ruptured site of the aneurysm is known.

-The reconstructed surface geometries will be provided after sending an e-mail
-The participants are free to choose their computational model, software,
boundary condition etc.
-The participants are also free to use any criteria to analyze the obtained
solutions with a view to rupture prediction. It is expected that the participants
should predict: 1) which one was the ruptured aneurysm based on their
computational results; 2) at which location the rupture took place.

Website of the challenge:

[1]Radaelli, AG et al.: Reproducibility of haemodynamical simulations in a
subject-specific stented aneurysm model - a report on the Virtual Intracranial
Stenting Challenge 2007. J Biomech. 2008 Jul 19;41(10):2069-81.
[2]Steinman, DA et al.: Variability of computational fluid dynamics solutions for
pressure and flow in a giant aneurysm: the ASME 2012 Summer Bioengineering
Conference CFD Challenge. J Biomech Eng. 2013 Feb;135(2):021016

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