Hi FreeSurfer I am working on a project concerning Alzheimer's patients and I need to know the positions of white matter (WM) and white matter lesions (WML) from your segmentations.
To find the WML, I use label 77 in the aparc.a2009s+aseg.mgz-files. To find the WM, I use labels 2 and 41 in the ribbon.mgz-files and subtract the ventricles by subtracting labels: 4, 5 14, 15, 43 44 found in the aseg.mgz-files. However, in the two sets of positions - one for WML and one for WM -there is an overlap. It is not big, but it is there. Can you help me finding the true WML- and WM-segmentations? With kind regards, Leise.
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