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Abstract #2488

MR Flow Imaging Reveals Unique Flow Patterns Linked to Different Leaflet Fusions with Bicuspid Aortic Valve

Nicholas Scott Burris 1 , Monica Sigovan 2 , David Saloner 1 , and Michael Douglas Hope 1

1 Radiology, University of California San Francisco, San Francisco, CA, United States, 2 University of Lyon, CREATIS Laboratory, Lyon, France

Bicuspid aortic valve fusion patterns (most commonly RL or RN) are associated with unique flow patterns aorta and unique patters of aortic dilation. Peak systolic flow displacement, is a parameter derived from cardiac MRI phase-contrast data, and quantifies the degree of flow eccentricity from the vessel midline. We investigated the direction of flow displacement as it relates to valve fusion pattern with a goal of better understanding the unique flow patterns created by differing valve fusion patterns. We found that RL fusion was highly associated with rightward flow jets, while RN fusion was associated with leftward or midline flow jets.

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