Re: [Freesurfer] space of T1.mgz

2012-12-20 Thread Bruce Fischl
Hi Mojdeh Have you checked out Koen van Leemput's hippocampal fled segmentation that you can run through recon-all? It might do what you want automatically. Cheers Bruce On Dec 19, 2012, at 4:07 PM, Mojdeh Zamyadi wrote: > Hi there, > > Sorry, if my question is confusing. This is what I want

Re: [Freesurfer] space of T1.mgz

2012-12-19 Thread Mojdeh Zamyadi
Hi there, Sorry, if my question is confusing. This is what I want to do, I have two groups of controls and patients and I've already run recon-all on them. I now want to know the head/body/tail volumes. What I did was: 1. used "mri_binarize" to get the right and left hippocampal masks from the cor

Re: [Freesurfer] space of T1.mgz

2012-12-18 Thread Douglas N Greve
No, they are not in any atlas space. The space is "native" in that 1mm in the image represents 1mm in the subject's brain. Therefore, you can directly compare the hippo volume across subjects. doug On 12/18/2012 12:59 PM, Mojdeh Zamyadi wrote: > Hi Doug, > > Thanks for the quick reply. I actual

Re: [Freesurfer] space of T1.mgz

2012-12-18 Thread Bruce Fischl
Hi Mojdeh they are not in atlas space and the volumes are for that subject, so you shouldn't have to do anything if I understand you correctly cheers Bruce On Tue, 18 Dec 2012, Mojdeh Zamyadi wrote: > Hi Doug, > > Thanks for the quick reply. I actually saw this link before first > posting my q

Re: [Freesurfer] space of T1.mgz

2012-12-18 Thread Mojdeh Zamyadi
Hi Doug, Thanks for the quick reply. I actually saw this link before first posting my question but it doesn't quite answer my question. What I want to know is whether the T1.mgz & aseg.mgz files are in an atlas space? if that's the case, it means the segmentation for all my subjects are in the

Re: [Freesurfer] space of T1.mgz

2012-12-18 Thread Douglas N Greve
Hi Mojdeh, try looking at this doc http://surfer.nmr.mgh.harvard.edu/fswiki/FsAnat-to-NativeAnat doug On 12/18/2012 11:09 AM, Mojdeh Zamyadi wrote: > Hi all, > > I want to segment the hippocampus into head/body/tail in itk SNAP using > the hippocampus mask that I create from the result of recon-al

[Freesurfer] space of T1.mgz

2012-12-18 Thread Mojdeh Zamyadi
Hi all, I want to segment the hippocampus into head/body/tail in itk SNAP using the hippocampus mask that I create from the result of recon-all segmentation. My question is, are the T1.mgz and aseg.mgz files in the native space of the image or in the atlas space? I know the voxel size is diffe