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Dear FreeSurfer experts,

 

I try to explore the Gyrification Index of both hemispheres in a population. For this I computed the LGI using the Freesurfer pipeline and used the command suggested in previous mails:

 

mri_segstats --slabel subject lh $SUBJECTS_DIR/subject/label/lh.cortex --i

$SUBJECTS_DIR/my_subject_id/surf/lh.pial_lgi –excluded 0 --sum lh.aparc.pial_lgi.stats

 

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With this I get one line of results for this hemisphere in this subject in the file lh.aparc.pial_lgi.stats

 

….

# NRows 1

# NTableCols 10

# ColHeaders  Index SegId NVertices Area_mm2 StructName Mean StdDev Min Max Range

1   1   115191   82607.4   Seg0001   3.5515   0.8629   2.1340   5.9443  3.8103

I would like to clarify, which variable is reporting the gyrification index?

Thank you for your help and time.

Kind regards,

Céline Steger

 

 

 

 

 

 

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