Abstract #1989

Toward a new Aneurysm Classification Framework: Initial Report on Stationary Spatial Blood Flow Pattern in Small Intracranial Aneurysms based on Submillimetric 4D Flow MRA at 7Tesla

Ang Zhou¹, Omid Amili², Sean Moen³, Mostafa Toloui¹, Andrew W Grande³, Filippo Coletti^2,4, Bharathi Jagadeesan^3,5,6, and Pierre-Francois Van de Moortele¹

¹Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, MN, United States, ²Department of Aerospace Engineering and Mechanics, University of Minnesota, Minneapolis, MN, United States, ³Department of Neurosurgery, University of Minnesota, Minneapolis, MN, United States, ⁴St. Anthony Falls Laboratory, University of Minnesota, Minneapolis, MN, United States, ⁵Department of Radiology, University of Minnesota, Minneapolis, MN, United States, ⁶Department of Neurology, University of Minnesota, Minneapolis, MN, United States

Asymptomatic sub 7mm intracranial aneurysms pose a difficult therapeutic challenge: left untreated these sub 7mm aneurysms may remain stable, but they also have the potential to grow in size or rupture causing a devastating subarachnoid hemorrhage (SAH). Pre-emptive treatment (surgical or endovascular) however carries non-negligible morbidity and mortality risks, which often are greater than the risk of rupture if left untreated. Here introduce the use of stationary flow patterns for a robust analysis of sub millimetric 4D Flow MRI .

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