Hi Bruce and team
I have a ROI mask in analyze (img_hdr) format obtained from MR spectroscopic group analysis using a different registration (talairach based). I want to use this ROI as a label to extract thickness measures on a group of subjects. How can I do this?
If I use mri_vol2surf will I be not projecting contrasts from a differently registered image set onto reconstructed freesurfer anatomical?
Cheers Lena
_______________________________________________________ Lena Palaniyappan Clinical Lecturer & Honorary StR | Division of Psychiatry ( University of Nottingham) South Block 'A' floor| Queens Medical Centre | Nottingham | NG7 2UH
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you need to create a registration file from your space to a freesurfer subject (probably fsaverage). You can then run mri_vol2surf to map it into fsaverage (or individual subjects). See the multi-modal integration tutorial on the wiki.
doug
Lena Palaniyappan wrote:
Hi Bruce and team
I have a ROI mask in analyze (img_hdr) format obtained from MR spectroscopic group analysis using a different registration (talairach based). I want to use this ROI as a label to extract thickness measures on a group of subjects. How can I do this?
If I use mri_vol2surf will I be not projecting contrasts from a differently registered image set onto reconstructed freesurfer anatomical?
Cheers Lena
*Lena Palaniyappan *Clinical Lecturer & Honorary StR | Division of Psychiatry ( University of Nottingham) South Block 'A' floor| Queens Medical Centre | Nottingham | NG7 2UH
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Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Hi Lena,
this is not a problem for surface-based approaches unless a grid is used in some underlying algorithm (e.g. level sets)
cheers Bruce
On Fri, 12 Feb 2010, Lena Palaniyappan wrote:
Hi Bruce and team
I have a ROI mask in analyze (img_hdr) format obtained from MR spectroscopic group analysis using a different registration (talairach based). I want to use this ROI as a label to extract thickness measures on a group of subjects. How can I do this?
If I use mri_vol2surf will I be not projecting contrasts from a differently registered image set onto reconstructed freesurfer anatomical?
Cheers Lena
Lena Palaniyappan Clinical Lecturer & Honorary StR | Division of Psychiatry ( University of Nottingham) South Block 'A' floor| Queens Medical Centre | Nottingham | NG7 2UH
This message has been checked for viruses but the contents of an attachment may still contain software viruses which could damage your computer system: you are advised to perform your own checks. Email communications with the University of Nottingham may be monitored as permitted by UK legislation.
freesurfer@nmr.mgh.harvard.edu
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Bruce Fischl -
Douglas N Greve -
Lena Palaniyappan