The ces.nii.gz file will contain the percent with respect to the mean
signal in the brain.
The cespct.nii.gz will contain the percent with respect to the mean time
series of the voxel.
On 5/30/2021 9:42 AM, Star Xi wrote:
External Email - Use Caution
Hi, dear FS experts,
I'm trying to use /mir_segstats /to extract % signal change in
task fMRI analysis. The command is:
o mri_segstats --I ./ces.nii.gz --annot fsaverage rh
perm.th30.pos.sig.ocn.annot --excludeid 0 --avgwf
rh.ces.avgwf.dat;
There are two kinds of contract files (ces.nii.gz and cesspit.nii.gz),
and I wonder which one should be used to calculate extract % signal
change.
In another words, if I use “mri_segstats —i cespct.nii.gz --avgwf
file.dat”, does the file.dat contain "% signal change" data? (The
webpage says “ avewf means computes the average waveform across all
the voxel" )
Thx a lot!
Star
///Sida Xi, M.D./
/Department of Ophthalmology/
/Eye and ENT Hospital, /
/Fudan University School of Medicine, /
/83th Fenyang Rd, Xuhui District, Shanghai, China/
_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
The information in this e-mail is intended only for the person to whom it is
addressed. If you believe this e-mail was sent to you in error and the e-mail
contains patient information, please contact the Mass General Brigham
Compliance HelpLine at http://www.massgeneralbrigham.org/complianceline . If
the e-mail was sent to you in error but does not contain patient information,
please contact the sender and properly dispose of the e-mail.
Please note that this e-mail is not secure (encrypted). If you do not wish to
continue communication over unencrypted e-mail, please notify the sender of
this message immediately. Continuing to send or respond to e-mail after
receiving this message means you understand and accept this risk and wish to
continue to communicate over unencrypted e-mail.
