Hello Freesurfers, I need to perform a GLM in 25 patients versus 19 controls but I need the comparison to be done only on normal appearing cortex (in patients), thus excluding cortical lesions.
* Is it possible to concatenate binary masks projected to surface? What command shall I use? * If I use the option --mask for mri_glmfit, will I obtain the same type of output with the only difference that clusters are looked for in the concatenated masks?
Thank you,
Valeria Barletta, MD Massachusetts General Hospital 149 13th Street, Charlestown MA 02129 (617)-724-8823
On 6/4/2020 12:38 PM, Barletta, Valeria wrote:
Hello Freesurfers, I need to perform a GLM in 25 patients versus 19 controls but I need the comparison to be done only on normal appearing cortex (in patients), thus excluding cortical lesions.
- Is it possible to concatenate binary masks projected to surface? What command shall I use?
You could mri_concat mask1.mgz mask2.mgz ... --mean --o mask.mean.mgz mri_binarize --i mask.mean.mgz --min .0000001 --o mask.concat.mgz
- If I use the option --mask for mri_glmfit, will I obtain the same type of output with the only difference that clusters are looked for in the concatenated masks?
Yes.
Thank you,
Valeria Barletta, MD Massachusetts General Hospital 149 13th Street, Charlestown MA 02129 (617)-724-8823
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