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Vortex and supra-physiologic-helix flow. Early (left column) and late (right column) systolic time-resolved particle traces show the formation of a large flow vortex encompassing the entire AAo (A, white arrows, grading = 1.5) in an aneurysm patient (AAo diameter = 41 mm). B: Development of supra-physiologic-helix flow (yellow arrows, grading=2) in the ascending (diameter=48 mm) and descending aorta in another aneurysm patient (gray arrows).
