we are using Realign and Unwarp (spm_realign.m, spm_uw_estimate.m, and
spm_uw_apply.m) with 4D-NIfTI data which gives very nice results.
However, these m-routines seem to change the NIfTI-header. Before
starting the realignment, our header shows
which is correct. After using realign and unwarp, the NIfTI header shows
This might be a problem when further programs are using the repetition
time from the NIfTI header.
With best wishes,