External Email - Use Caution Hi Bruce,
Chris Rorden informed me that Surfice previously assumed that MGZ/MGH files were voxelwise images used to surface-paint a mesh. Anderson's palm, however, uses the format as a one-to-one correspondence with the vertices (i.e., data-per-vertex). Chris' newest/upcoming version of Surfice automatically detects this data-per-vertex format and can load the files appropriately. The main feature that freeview lacks is the ability to display multiple overlays/sets of palm results at once. My initial approach was to convert the .mgz palm outputs into .nii so that I could use fslmaths to combine results, but (apparently) NIFTI handles a maximum of 65,535 voxels in any one dimension, which is why Chris thought Anderson used MGH, which allows billions of vertices (32-bit). So, Surfice can now load the palm .mgz outputs onto ?h.inflated, .pial, and .curv surfaces, but I'm now wondering if mgh/mgz overlays be be loaded on top of other background meshes (such as BrainMesh_ICBM152 or mni2fs meshes that are provided with Surfice). I've emailed Darren Price because I'm essentially looking for the inverse transform of his mni2fs package (i.e., fs2mni), but I was wondering if you or Doug have encountered this question or similar requests to convert freesurfer to mni surfaces/meshes before? I'm familiar with the Freesurfer Coordinate Systems info, but I don't know how I might generalize the RAS to MNI152 point conversion to an entire surface. Thank you again for your suggestions and help! Dan
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