Hi,
Two fields that ought to be populated here are slice_code and slice_duration. While slice duration might not be necessary (one could default to TR/nslices), slice code should be set (to provide the slice acquisition order). In some cases the slice_code will not have a possible value to correspond with the slice order (NIFTI cannot support arbitrary slice timing). What was the slice timing in this case? Was this a multi-band acquisition?
If you know the slice timing, it is possible to pass it separately, which would allow for a timing that NIFTI cannot represent.
- rick
