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A, Normal aortic valve anatomy with an opening angle of 75 degrees, flow jet angle (θ1, which measures displacement of peak systolic flow [arrow] from vessel midline). B, BAV showing restricted valve opening (opening angle of 60 degrees), displaced flow jet with associated θ1, displaced high-flow velocities near the vessel wall leading to asymmetrically increased WSS at the aortic convexity. WSS, Wall shear stress. Reproduced with permission from Burris and Hope.97
