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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.