Fig. 3From: Fast self-navigated wall shear stress measurements in the murine aortic arch using radial 4D-phase contrast cardiovascular magnetic resonance at 17.6 TA Exemplary result of a shift measurement (z-direction). Each image In was shifted on a 0.01 mm grid and compared with the first image, I1. The optimum shift value corresponds to the minimum error between the reference and the shifted image. B Measured shifts in all directions as a function of time for an exemplary mouse. The shift values were determined on a time base of 48 sBack to article page