Fig. 3

Plots of measured motion magnitude. Fifty-nine navigator volumes were registered to the first navigator (Nav_1,1, reference position). The subject with the largest maximum motion magnitude is shown at the top and the subject with the lowest maximum motion magnitude (1 mm) at the bottom. The red curves are the motion at the 60 mm point representing cortex motion and is the reference point for motion magnitude in our study. The purple curves are the motion magnitude at the scanners center of FOV (cFOV). The individual translational and rotational components of the motion are given in the Additional file 1 (part 2)