There's not an easy way to do this. You can load the parcellation into matlab and create a matrix of size nverticesx1, then map the value you want into each vertex, then mri.vol = yourmatrix; MRIwrite(mri,'lh.matrix.mgh') then load that lh.matrix.mgh as an overlay in tksurfer doug
On 06/18/2012 06:50 PM, Leon wrote:
Hi, FreeSurfer experts
I used mri_make_surface_parcellation and parcellated the brain into 200 ROIs. Then some measures were derived based on the ROIs and now I have 200*1 matrix with each ROI having a value. What I want to do is to map the ROI-based measures back to the surface files and show the intensity differences between these 200 ROIs on surfaces. Could someone tell me what is the best way to realize that? Forgive me if this question has bee asked before, but I really do not know how to input best keywords for the question to search in the archive.
Many thanks in advance! Leon
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