Right and left midsagittal section displacement profiles, in vivo WSS (τ) in dynes/cm2 (data points and curve fit) and calculated in vivo WSS spatial gradient (dτ/ds) in dynes/cm3 for resting flow. The graphs above the displacement profiles show the WSS [A] [C] and the WSS spatial gradient [E] [G] along the anterior wall. The graphs below the displacement profiles show the WSS [B] [D] and the WSS spatial gradient [F] [H] along the posterior wall. The solid arrow points to the region that exhibited the lowest WSS. Profiles at the IMA (dashed oval) could not be resolved because of the IMA.