Hi Niels
I don't see why not. vol2surf takes the surface location and the surface normal and sampled from the volume onto the surface using those two pieces of local information. Global surface topology shouldn't matter cheers Bruce
On Sun, 29 Mar 2020, Niels Janssen . wrote:
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Dear list
I am working on a project in which we want to extract hippocampal surfaces using mri_tessellate and then overlay these surfaces with fmri activations from nifti files using mri_vol2surf. However, I am unclear whether mri_vol2surf can be used for surfaces derived from subcortical structures like the hippocampus. Crucially, these structures are unlike the cortex in that they have a closed shape and therefore the projection of activation to a surface may be more complex than in the case of cortex (which surface normal should one take?). So I guess my question is whether mri_vol2surf works for these kinds of surfaces or whether some other approach should be used. Thanks!
Niels
-- Niels Janssen Brain Imaging Laboratory Institute of Biomedical Technologies Institute of Neurosciences University of La Laguna Tenerife, Spain https://sites.google.com/view/nielsjanssen/