Hi Lindsay
you can use the m-file read_curv.m to read in the thickness file
(lh.thickness or rh.thickness). You can also load .mgf files with either
load_mgh.m or MRIread.m, then compute the mean in any subset of the
vertices you want.
cheers
Bruce
On Fri, 4 Jan 2019, lindsay hanford wrote:
External Email - Use Caution
Hi Bruce, Sorry for the late reply. I have been searching the forum and the
freesurfer wiki. Are there
instructions somewhere on how to do this in matlab?
Thanks,
Lindsay
On Thu, Dec 20, 2018 at 2:41 PM lindsay hanford <lindsay.hanf...@gmail.com>
wrote:
Hello Freesurfer Community,
I am wondering if it is possible to recalculate cortical thickness metrics
(perhaps using
mri_segstats or aparcstats2table) while including either a SD threshold or an
exclusion mask.
Using mri_surf2surf to register scans to the same space and then
mri_surface_stats to create the
std maps I have been comparing the variability of cortical thickness across the
cortex for
multiple scans across the same subject. From this I can determine a SD
threshold point (0.5 say)
or create a mask that includes all regions above that threshold.
I would like to use this to threshold the regions showing the highest
variability out of my
calculations for mean hemispheric thickness and also regional thickness.
Is there a way to use an SD threshold within mri_segstats or aparcstats2table?
Otherwise apply a
mask image to exclude specific vertices?
Thank you in advance,
Lindsay
--
Lindsay Hanford, PhD
The Buckner Laboratory | Harvard University
280 Northwest Laboratory, 52 Oxford St | Cambridge, MA 02138
412-218-4368 | lindsay.hanf...@gmail.com
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