what space is your VBM map in?
doug
On 06/05/2013 11:06 AM, Ozranov-Palchik, Ola wrote:Hi Doug,Thank you for your response! I am still a bit confused about the vol2surf command. I have a volumetric mask with voxels of interest based on a VBM analysis in SPM. I would like to extract the cortical thickness measurements based on these voxels. I am not clear what specifications I need to include when using vol2surf. For example, what do I use as my registration matrix?Thank you for your help!OlaOla Ozranov-Palchik M.S.Research Coordinator, Gaab LabLaboratories of Cognitive NeuroscienceChildren's Hospital Boston1 Autumn Street, Mailbox # 713Boston, MA 02115olga.ozranov@childrens.harvard.eduphone: (617) 334-5046main lab: (617) 355-0400fax: (617) 730-0518http://www.childrenshospital.org/research/gaablab-----Original Message-----From: f reesurfer-bounces@nmr.mgh.harvard.edu [mailto:freesurfer-bounces@nmr.mgh.harvard.edu] On Behalf Of Douglas N GreveSent: Tuesday, June 04, 2013 1:48 PMTo: freesurfer@nmr.mgh.harvard.eduSubject: Re: [Freesurfer] SPM ROI to Cortical ThicknessMake sure that your SPM volume is registered to the anatomical, then use mri_vol2surf to map the volume to the surface, then mri_segstats to extract the mean of the thicknessdougOn 06/04/2013 01:45 PM, Ozranov-Palchik, Ola wrote:main lab: (617) 355-0400Dear FreeSurfer Experts,I was wondering if anyone can advise on the best way to use an ROI mask created in SPM (XjView) to extract cortical thickness values in freesurfer.Thank you in advance for your help!Ola
I don't know anything about XjView. You will need to be very specific and detailed about what you did in order for us to help you. Eg, what space is the ROI in?
doug
On 6/15/13 8:40 AM, xiangbo_2010 wrote:
Dear experts,
I was wondering if anyone can advise on the best way to use an ROI mask created in SPM (XjView) to extract cortical thickness values in freesurfer. Though which was pointed out by reseachers, but I still can not know it. I hope some experts help me, Thanks!
Bo
Thank you in advance for your help!
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