Hi Chris,
Old slice information is lost upon resampling since the old
slices generally do not exist, so slice timing (and obliquity
information) are thrown out.
Your case is a little more simple though, since you are just
reorienting the original slices (the slice pattern and locations
did not change). So I guess you might use 3drefit to copy the
needed time info from the original dataset. That amounts to
copying 2 attributes, as in:
3drefit -atrcopy OLD+orig TAXIS_OFFSETS -atrcopy OLD+orig TAXIS_NUMS NEWi+orig
- rick