you should be fine with the subject metrics we generate. Typically thickness doesn't need much if any eTIV correction On Thu, 23 Apr 2020, Miguel Ángel Rivas Fernández wrote:

External Email - Use Caution

Dear Freesurfer experts,

We are interested in running external analysis with thickness measurements of two brain regions. Can we use safely the metrics exported or by contrary a previous transformation is required before export the stats of each subject?

Thanks for your time.

Best regards,

-- Miguel Ángel Rivas Fernández