Figure 1

a) A pencil beam navigator is played out before each acquisition and placed on the top of the liver b). The information given by the navigator c) is used, through a tracking factor of 0.6, to move the slice in real time during the breathing cycle. Performance of the respiratory head-foot motion correction for SE-EPI diffusion with slice following was evaluated with coronal b-values=30 s/mm2 image from a series of diffusion-weighted images acquired over 1 min. d) and e) breathing coronal acquisition without and with slice following.