I have used freesurfer v6.0 to calculate local Gyrification index ( LGI ). And I have output the file named lh.pial_lgi and extracted the value of LGI by using the following command:

> mris_anatomical_stats -a ${SUBJECTS_DIR}/S005/label/lh.aparc.annot -t pial_lgi -f ${SUBJECTS_DIR}/S005/stats/lh.aparc_lgi.stats S005 lh
> aparcstats2table --subjects S005 --hemi lh --meas thickness --skip —parc aparc_lgi --tablefile  result_lgi_lh.txt

However, I found that the header of the output result showed the “thickness" instead of “LGI". Does this “thickness" represent the index of “LGI"? I have attached the result of one sample in the attachment. Thank you again for taking your precious time to solve my problem！