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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 Coletti2,4, Bharathi Jagadeesan3,5,6, 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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