if you load it in tkmedit is it displayed properly?
On Wed, 22 Oct 2008, Juranek, Jenifer wrote:
I'm able to view the intensity values in FSL. Is there another approach I can take to doublecheck?
Jenifer -----Original Message----- From: Bruce Fischl [mailto:fischl@nmr.mgh.harvard.edu] Sent: Wednesday, October 22, 2008 4:15 PM To: Juranek, Jenifer Cc: freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] FreeSurferColorLUT & aparc
Hi Jenifer,
how are you getting those intensity values?
Bruce
On Wed, 22 Oct 2008, Juranek, Jenifer wrote:
Hi, Running fsv405 on RHEL5. I've encountered some unexpected numerical values wrt
FreeSurferColorLUT.txt. Are my expectations off?
- In the aparc+aseg.mgz file, intensity values for the cortical
labels range from -32768 to 654, with negative values falling in some regions in the left hemisphere.
- Identical results are obtained if mri_aparc2aseg is used to
generate an output file: mri_aparc2aseg --s mysubject --o ./aparc2aseg.mgz
- Values of aseg.mgz map perfectly well to FreeSurferColorLUT.txt
Example values obtained from aparc+aseg.mgz are listed below: lh.superiortemporal=484 (expecting 1030 from FreeSurferColorLUT.txt) rh.superiortemporal=32767 (expecting 2030)
Although these numerical values do not match the LUT, they are
consistent across subjects.
Many Thanks for any insights... Jenifer
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