Hello, I'm looking for some help to generate connectivity matrices using Freesurfer segmented volumes and my DTI data.
Firstly, the output from Freesurfer required for network analysis in ExploreDTI needs a label volume file in .nii format. Then, I need a coordinate .txt file and two column label names .txt file. The output from Freesurfer separates left and right hemispheres in .label format. Do I need to merge lh. & rh. labels, then convert labels to a volume file in order to get a .nii? Or is there an alternative step? Next, is there a downloadable x,y,z coordinate .txt file to correspond with the label volumes? I'm looking for a simplified x,y,z coordinate file for about the 68 structures, rather than the grayordinates with every vertex. Finally, would the label names file be generated with both left and right hemispheres in the one file? Kind Regards, Stefani O'Donoghue PhD Candidate Clinical Neuroimaging Laboratory Department of Psychiatry National University of Ireland, Galway
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