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Table 1 4D Flow parameter

From: Differential flow improvements after valve replacements in bicuspid aortic valve disease: a cardiovascular magnetic resonance assessment

Flow angle The angle of deviation from the center of the aortic lumen
Flow displacement The distance of flow jet deviation from the center of the aortic lumen indexed to ascending aortic diameter
Rotational flow The blood flow circling within the aortic plane
WSScircavg Circumferentially averaged systolic wall shear stress - surrogate marker for the friction the blood flow exerts onto the aortic wall
In-plane wall shear stress (the ‘rotational’ component) exerted by the blood circling within the plane along the aortic wall
Through-plane wall shear stress Exerted by the blood flowing through the vessel.