External Email - Use Caution
Hello,
I am working on obtaining cortical thickness values for customized groups of ROIs. Currently, I extract thickness values for the standard set of ROIs using the following command: aparcstats2table --subjects [SUBJECT_ID] --hemi lh --meas thickness --tablefile lh_thickness.csv
However, I would like to compute the mean thickness for a specific anatomical region, such as the right cingulate lobe, which consists of the following ROIs:
- ctx-rh-caudalanteriorcingulate - ctx-rh-rostralanteriorcingulate - ctx-rh-isthmuscingulate - ctx-rh-posteriorcingulate
Does FreeSurfer provide a built-in feature to compute mean thickness for such grouped regions? If not, what would be the most methodologically sound approach? I considered computing a volume-weighted average thickness, but I would appreciate your insights on the best way to proceed.
Looking forward to your guidance.
Thanks,
Rohit