Hi Doug I use the MNI space! And what I do is the same with Ola, the following is the exchange of massage, but I still can not know how to do? thanks!

Bo

MNI space.

On Jun 5, 2013, at 11:14 AM, Douglas N Greve wrote:

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!Ola

Ola Ozranov-Palchik M.S. Research Coordinator, Gaab Lab Laboratories of Cognitive Neuroscience Children's Hospital Boston 1 Autumn Street, Mailbox # 713 Boston, MA 02115 olga.ozranov@childrens.harvard.edu phone: (617) 334-5046 main lab: (617) 355-0400 fax: (617) 730-0518 http://www.childrenshospital.org/research/gaablab

-----Original Message----- From: freesurfer-bounces@nmr.mgh.harvard.edu [mailto:freesurfer-bounces@nmr.mgh.harvard.edu] On Behalf Of Douglas N Greve Sent: Tuesday, June 04, 2013 1:48 PM To: freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] SPM ROI to Cortical Thickness

Make 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 thickness doug

On 06/04/2013 01:45 PM, Ozranov-Palchik, Ola wrote: main lab: (617) 355-0400 Dear 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

At 2013-06-16 01:31:24,"Douglas Greve" greve@nmr.mgh.harvard.edu wrote:

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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