Re: [Freesurfer] aseg.stats volume mismatch

2014-05-15 Thread Gabor Perlaki
Dear Bruce, I think of a probability map for each segmented structure, like the partial volume images for WM, GM and CSF in FSL. Is there anything like that in Freesurfer? Thanks, Gabor 2014-05-09 22:48 GMT+02:00 Gabor Perlaki petzinger.ga...@gmail.com: Dear Bruce, I think of a file which

Re: [Freesurfer] aseg.stats volume mismatch

2014-05-15 Thread Bruce Fischl
Hi Gabor the partial volume estimates are not the probabilities. We could output p-values, but that won't give you partial volume estimates. Bruce On Thu, 15 May 2014, Gabor Perlaki wrote: Dear Bruce, I think of a probability map for each segmented structure, like the partial volume

Re: [Freesurfer] aseg.stats volume mismatch

2014-05-09 Thread Gabor Perlaki
Dear Bruce, I think of a file which also shows the partial volume estimates for the segmented structures. Thanks, Gabor 2014-05-07 22:31 GMT+02:00 Gabor Perlaki petzinger.ga...@gmail.com: Dear Bruce, Is there a file generated by freesurfer which stores the subcortical segmentations together

Re: [Freesurfer] aseg.stats volume mismatch

2014-05-09 Thread Bruce Fischl
Hi Gabor, sorry, I still don't know what you mean. The volume estimates in aseg.stats do include partial volume estimates. Do you mean to include only the volume of a structure that comes from partial volume voxels? Would that really be useful? For something like the hippocampus it will be a

Re: [Freesurfer] aseg.stats volume mismatch

2014-05-07 Thread Gabor Perlaki
Dear Bruce, Is there a file generated by freesurfer which stores the subcortical segmentations together with the information of partial volume estimates? Thanks, Gabor ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu

Re: [Freesurfer] aseg.stats volume mismatch

2014-05-07 Thread Bruce Fischl
what information would you want? Bruce On Wed, 7 May 2014, Gabor Perlaki wrote: Dear Bruce, Is there a file generated by freesurfer which stores the subcortical segmentations together with the information of partial volume estimates? Thanks, Gabor

[Freesurfer] aseg.stats volume mismatch

2014-05-06 Thread Gabor Perlaki
Dear all, I've loaded the mri/aseg.mgz in slicer3D and done a label statistics on the image. The left caudate was reported to be 4005 mm^3 and the right caudate to be 4011 mm^3 by Slicer3D. However, these numbers are somewhat different from the values reported in aseg.stats: 3757 mm^3 and 3901

Re: [Freesurfer] aseg.stats volume mismatch

2014-05-06 Thread Bruce Fischl
Hi Gabor we do partial volume correction when we compute the aseg.stats cheers Bruce On Tue, 6 May 2014, Gabor Perlaki wrote: Dear all, I've loaded the mri/aseg.mgz in slicer3D and done a label statistics on the image. The left caudate was reported to be 4005 mm^3 and the right caudate to