Hi All,
Is there a method of isolating an area of the overlay image (functional onto anatomical) on Freesurfer as ROI and get the average of the amplitude of the ROI?
Any suggestions would be appreciated.
Nam.
do you mean specifying it anatomically or functionall? You can do both. Anatomically you can use any of the cortical parcellation or subcortical segmentation units for this, or draw one yourself.
On Mon, 19 Jun 2006, Joongnam Yang wrote:
Hi All,
Is there a method of isolating an area of the overlay image (functional onto anatomical) on Freesurfer as ROI and get the average of the amplitude of the ROI?
Any suggestions would be appreciated.
Nam. _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Yes, assuming you are talking about tkmedit. You can use the Tools->fMRI->Select Contiguous Voxels commands to create the selection based on the functional values, and then save that as a label file. I'm sure there is a tool that will then give you statistical information based on this ROI, which Bruce or Doug will tell you about.
On Mon, Jun 19, 2006 at 02:54:32PM -0400, Joongnam Yang wrote:
Hi All,
Is there a method of isolating an area of the overlay image (functional onto anatomical) on Freesurfer as ROI and get the average of the amplitude of the ROI?
Any suggestions would be appreciated.
Nam.
freesurfer@nmr.mgh.harvard.edu
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Bruce Fischl -
Joongnam Yang -
Kevin Teich