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Differences in wall shear stress values (WSS) derived from the analytical solution (WSSanalyt) and velocity or flow-based method under steady flow conditions in a cylindrical vessel (i.e., Poiseuille flow). Changes in (a) peak velocity (r = 3 mm), (b) radius (WSSanalyt = 1.5 Pa), (c) signal-to-noise ratio (r = 3 mm, WSSanalyt = 1.5 Pa), and (d) number of circumferential sectors (r = 3 mm, WSSanalyt = 1.5 Pa). *** indicates p< 0.001.
