Dear FreeSurfer Team,
I have an additional question about the ?h.sulc.
[mris_anatomical_stats can do this if you specify sulc as the "thickness" file]
your explaination means that instead of the mris_anatomical_stats -l <specific label> -t *lh.thickness* -b -f <output values> <subjects> lh
I can use these command with change the -t option: mris_anatomical_stats -l <specific label> -t *lh.sulc *-b -f <output values> <subjects> lh
After then, at the output values the header 5. thickAvg (Average Thickness) value can show an average of sulcal depth vector value.
Is it correct understanding?
I appreciate your detailed explanation.
Best Regards,
Han.
On Mon, Sep 26, 2016 at 12:34 PM, Bruce Fischl fischl@nmr.mgh.harvard.edu wrote:
- It is the signed dot product of the movement vector with the outwards
pointing surface normal of the white matter surface during inflation.
Yes, because moving inwards for gyri the dot product is negative.
Yes, I think so, although I'm not sure I understand.
mris_anatomical_stats can do this if you specify sulc as the "thickness"
file
On Mon, 26 Sep 2016, Hanbyul Cho wrote:
Dear FreeSurfer Team,
I have questions about the sulcal depth.
- I heard that the output/surf/?h.sulc is showing the sulcal depth.
Is it correct that the sulcal depth measure unit is normalized z-score, mm? And is it correct that the (-) values of sulcal depth mean gyral region (green), and (+) values mean sulcal region (red)?
- I wonder if ?h.sulc is based on white matter surface or pial matter
surface.
- I analyzed the sulcal depth by vertex-level. if the results include
the sulc (-) values region, Is it meaning that the gyral height?
- I wonder the method/commands for extracting the sulc value by
label-level.
- Could you let me know the recommended smoothing option if it possible?
(e.g. --fwhm-trg [N])
I appreciate your help.
Thank you.
Han Byul Cho
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 Partners Compliance HelpLine at http://www.partners.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.