Hi Elissa
I would create the ROI on the fsaverage surface using either freeview or
tksurfer. You can then use mri_label2label to map it to any subject, and
mris_anatomical_stats -l <label name> ... to compute thickness within
the ROI
cheers
Bruce
On Mon, 23 Nov 2015, Elissa Ash wrote:
Dear list,
I am resending a message that I sent on Friday. Any help would be most
sincerely appreciated.
Dear Freesurfers,
I am new to freesurfer and I am trying to understand how to best perform a
cortical thickness analysis for an ROI that is not
pre-defined in freesurfer, such as the IFJ or V5. Should I create a surface ROI
label using tksurfer (or freeview) or should I
create an ROI in volume space? What is the difference? Which way is
methodologically correct? Can I obtain the average cortical
thickness for my ROI if it is created as a label? Also, is there a tutorial
explaining how to draw an anatomical ROI that is
not designated in either atlas, either as a label or as a volume? I would like
to compare cortical thickness of my ROI to a
behavioral measure in a group of subjects that were treated with TMS to this
ROI. I have looked through the listserve and
tutorials but I have not found my answer.
Thank you,
Elissa
--
Elissa Ash, MD, PhD
Director, Center for Memory and Attention Disorders
Department of Neurology
Tel Aviv Sourasky Medical Center
6 Weizmann St.
Tel Aviv 64239, Israel
972-3-6973698
fax: 972-3-695-0365
--
Elissa Ash, MD, PhD
Director, Center for Memory and Attention Disorders
Department of Neurology
Tel Aviv Sourasky Medical Center
6 Weizmann St.
Tel Aviv 64239, Israel
972-3-6973698
fax: 972-3-695-0365
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