Closed KirstieJane closed 4 years ago
Regarding the fmap
folder, it was originally planned to host the B0 fieldmap, mainly for fMRI/EPI data. With advanced anatomical images, 2 other types of fieldmaps are regularly acquired: B1+ and B1 maps.
B1+ maps, aka. "B1 bias correction". These have been added in the current version of the BEP001 proposal, with the following template.
sub-<participant_label>/[ses-<session_label>/]
fmap/
sub-<participant-label>[_ses-<session_label>][_acq-<acq-label>][_run-<run_index>]_B1plusmap.nii[.gz]
sub-<participant-label>[_ses-<session_label>][_acq-<acq-label>][_run-<run_index>]_B1plusmap.json
These images are thus clearly designated by the B1plusmap
suffix.
A similar suffix, e.g. B1minusmap
, could be introduced in order to host the B1- maps in the same fmap
folder. The template would be pretty similar, apart for the suffix of course.
I'm currently merging changes to the bids specification into our repository to keep us in sync with those changes.
The point of this issue is to note where there are conceptual merge conflicts (rather than just git not knowing which line information should be on!) so we can review and discuss them.
The Fieldmap data section needs reviewing for a way to combine the updates. Mostly gramatically as there aren't really any conceptual conflicts.
The final sentence of this section doesn't actually flow on to the four examples - recommend reading through and double checking the grammar etc.