FIG 1. The FastPACE sequence, as used for quantitative magnetization transfer imaging. Two phase-alternated acquisitions for a single phase-encoding step are shown. These two acquisitions are necessary to remove the background phase, because T1 is obtained from the phase of the composite echo. Each TR interval can be exploited for excitation of additional slices. MT saturation is achieved by performing a short binomial pulse before 
1. Owing to multislice acquisition, a high saturation level can be achieved
