Re: [Freesurfer] Qustion about Preprocessing for Tutorial_data

2009-09-03 Thread Nick Schmansky
Kenta, The error message says: 3dvolreg: error while loading shared libraries: libXp.so.6 so either libXp.so.6 needs to installed on your system, or symlinked to an existing libXp, or AFNI needs to be installed. The freesurfer distribution includes 3dvolreg, the only AFNI binary copied from

Re: [Freesurfer] Wrong boundaries at ventricle.

2009-09-03 Thread Bruce Fischl
Can you send us the recon-all.log? On Sep 3, 2009, at 4:29 AM, Zheng Hui zheng@duke-nus.edu.sg wrote: Dear Bruce, In the attached image at the ventricle area, you can see the pial and white surfaces go into the ventricle, following the white/CSF boundary rather than going through

[Freesurfer] comparison of volume difference

2009-09-03 Thread Guang Zeng
Hi, there, I am wondering how i can do a comparison of two scans of the same object, calculating the percent volume difference and percent volume overlap of hippocampus,...etc. Somebody can give me a hint? Thanks a lot! Guang Zeng

Re: [Freesurfer] comparison of volume difference

2009-09-03 Thread Martin Reuter
Hi Guang, if it is the same subject, use the longitudinal stream: http://surfer.nmr.mgh.harvard.edu/fswiki/LongitudinalProcessing Cheers, Martin On Thu, 2009-09-03 at 11:46 -0500, Guang Zeng wrote: Hi, there, I am wondering how i can do a comparison of two scans of the same object,

[Freesurfer] aseg.stats columns...

2009-09-03 Thread Gonzalo Rojas
Hi: In the aseg.stats file, some columns has the title: normMean, normRange, etc... What is the meaning of the word norm ?... Sincerely, -- Gonzalo Rojas Costa Department of Radiology Clínica Las Condes Lo Fontecilla 441, Las Condes, Santiago, Chile. Tel: 56-2-2105170 Cel:

Re: [Freesurfer] aseg.stats columns...

2009-09-03 Thread Douglas N Greve
that means it's from the norm.mgz volume Gonzalo Rojas wrote: Hi: In the aseg.stats file, some columns has the title: normMean, normRange, etc... What is the meaning of the word norm ?... Sincerely, -- Douglas N. Greve, Ph.D. MGH-NMR Center gr...@nmr.mgh.harvard.edu Phone

Re: [Freesurfer] Extraction of WM + GM Volumes

2009-09-03 Thread Douglas N Greve
Hi Ed, sorry for the delay. For GM, you'll need to do the following: 1. Create a binary mask of the cortical GM: mri_binarize --i aparc+aseg.mgz --min 999.5 --o ctx.mgz This is just a thresholding operation. All the cortical areas have an index = 1000. 2. Create a binary mask of the

[Freesurfer] FDR corrected figure

2009-09-03 Thread 류철형
Dear all. I'd like to make a thickness difference figure with FDR corrected color scale bar. For example. FDR corrected p0.05 p0.01 p0.001 Color scale bar== However, in the qdec or tksurfer, only the

Re: [Freesurfer] FDR corrected figure

2009-09-03 Thread Douglas N Greve
It's not a voxel-wise FDR correction. FDR is used to choose the voxel-wise threshold. The values themselves are still uncorrected. doug 류철형 wrote: Dear all. I'd like to make a thickness difference figure with FDR corrected color scale bar. For example. FDR corrected p0.05 p0.01 p0.001