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Abstract #4433

Comparison Between 3D Phase Contrast MRI and Computational Fluid Dynamics in Unruptured Intracranial Aneurysms.

Joppe Schneiders1, Pim van Ooij2, Joost van den Berg1, Ed van Bavel2, Aart J. Nederveen1, Charles B. Majoie1

1Radiology, Academic Medical Center, Amsterdam, Netherlands; 2Biomedical Engineering & Physics, Academic Medical Center, Amsterdam, Netherlands

In this study we compare time averaged 4D MRI of intracranial aneurysms and surrounding vessels with simulations created using Computational Fluid Dynamics(CFD). The vessel geometry is obtained from high resolution 3D rotational angiography and inflow velocity is derived from 2D PC MR velocity measurements. We compared 4 patients with unruptured aneurysms, visualising the intra-aneurysmal flow pattern. With both modalities it is possible to visualise intra-aneurysmal flow patterns, with good agreement between the two different techniques.