Hello, Nick,
Yes, I can get the results now, I set the wrong path.
Just want to double check,
I have send the two subjects (from different time points) to the FreeSurfer
longitudinal stream,
so the resulted two aseg.mgz files have been registered to the base-template,
right?
Thanks a lot!
Guang
> From: ni...@nmr.mgh.harvard.edu
> To: freesurfer...@hotmail.com
> Date: Wed, 23 Sep 2009 13:01:52 -0400
> CC: freesurfer@nmr.mgh.harvard.edu
> Subject: Re: [Freesurfer] how to use mri_compute_seg_overlap
>
> Guang,
>
> So you did not get output that looked like this?
>
> logging overall Dice to text
> Jaccard Coefficients:
> correct ratio for label 2 = 1
> correct ratio for label 41 = 1
> .
> .
> correct ratio for label 44 = 1
> mean +/- std = 1.0000 +/- 0.0000
> Dice Coefficients:
> label 2 = 1
> label 41 = 1
> .
> .
> .
> label 44 = 1
> mean +/- std = 1.0000 +/- 0.0000
> Overall subcortical dice = 1.0000
>
> (in this example, i compared the same aseg, so dice will be 1).
>
> also, make sure your second time point aseg is registered to the first.
> if it is not, the your dices will be low, because its just comparing
> voxel to voxel.
>
> Nick
>
>
> On Wed, 2009-09-23 at 11:30 -0500, Guang Zeng wrote:
> > Hi, there,
> >
> > I have two subjects from two time points, I'd like to compare their
> > overlap ratio of FreeSurfer segmented hippocampus.
> > I try to use the command mri_compute_seg_overlap to do it,
> >
> > My command line is:
> > mri_compute_seg_overlap -olog text tp1/mri/aseg.mgz tp2/mri/aseg.mgz
> >
> > Is it correct? I ran it, but nothing happen.
> >
> > Thanks!
> >
> > Guang
> >
> >
> >
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