Hi Barbara Anne - In each tract's directory, you'll find the tract as a volumetric probability distribution in the file path.pd.nii.gz. You can use that as an ROI to extract statistics from any other volume that's in the same space as the tracts (native DWI space). To be consistent with the FA, MD, etc stats that are produced by default by trac-all, you'd threshold path.pd.nii.gz to 20% of its max value before using it as an ROI.
Hope this helps, a.y On Mon, 16 Feb 2015, Barbara Kreilkamp wrote:
Dear TRACULA experts, I wonder if you could please assist me in extracting tract values from an image I transferred to diffusion space. I ran TRACULA on my DTI dataset, however from other structural images I aim to extract values for tracts as well. I also extracted DTI derived measures from these tracts of my DTI data (FA,MD,RD,AD), using this command: trac-all -stat -c dmrirc And now I wonder whether I could add another line to the source code of the stats command so that it would output values from that other image I have in diffusion space. Best wishes and thank you, Barbara Anne
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