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E.g. if there are 68 ROIs, single SUVr for each subject will be:
(# of voxels in ROI 1*(suvr of ROI1 ) + ........+ # of voxels in ROI 68*(suvr of ROI 68))_________________________________ __________________________________(# of voxels in ROI 1 + .............. # of voxels in ROI 68)
On Wed, Jul 3, 2019 at 3:45 PM Greve, Douglas N.,Ph.D. <DGREVE@mgh.harvard.edu> wrote:
You can look in the gtm.stats file for all the cortical ROIs. Multiply the uptake value by the number of voxels in the ROI and then divide by the sum of the number of voxels across all ROIs. See https://surfer.nmr.mgh.harvard.edu/fswiki/PetSurfer here for the identity of the columns in the gtm.stats file_______________________________________________
On 7/3/2019 3:36 PM, miracle ozzoude wrote:
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Over the cortex.
On Wed, Jul 3, 2019 at 2:59 PM Greve, Douglas N.,Ph.D. <DGREVE@mgh.harvard.edu> wrote:
The mean over what area? Whole brain or just cortex?_______________________________________________
On 7/3/2019 2:15 PM, miracle ozzoude wrote:
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Hello Expert,
How do i get a single SUVr value for PETsurfer? Similar to Mean_Thickness from Freesurfer, I want to extract a global/Mean SUVr value for each of my subjects.
Thank you.
Paul
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