Add support for fsaverage

PennLINC / xcp_d

Post-processing of fMRIPrep, NiBabies, and HCP outputs

https://xcp-d.readthedocs.io

BSD 3-Clause "New" or "Revised" License

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Add support for fsaverage #613

Open kahinimehta opened 1 year ago

kahinimehta commented 1 year ago

[ ] Data with fsaverage CIFTI derivatives
[ ] Add fsaverage to allowed spaces
[ ] Run on the test data and debug from there

tsalo commented 1 year ago

The CIFTI connectivity workflow does not have any transforms implemented, so we would need the same transform resolution steps that the NIFTI workflow has in order to support any CIFTI spaces other than fsLR.

tsalo commented 1 year ago

From BIDS:

The fsaverage is a dual template providing both volumetric and surface coordinates references. The volumetric template corresponds to a FreeSurfer variant of MNI305 space. The fsaverage atlas also defines a surface reference system (formerly described as fsaverage[3|4|5|6|sym]).

I am not sure what the MNI305 FreeSurfer variant is, unfortunately. I think we would need to be able to transform the atlases to this space.

mattcieslak commented 1 year ago

I assumed the volumetric space was nlin6. But that's cifti :(