[Freesurfer] convert .img to .mgz

2008-11-26 Thread Luke Tseng
how do i convert a .img file to something i can view in freesurfer like .mgz? mri_convert? ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer

Re: [Freesurfer] qdec error

2008-11-26 Thread Mark J. Pearrow
It's possible that you are running a Debian-based distro and just don't have libtiff.so.3; but you probably have libtiff.so.4, so you can create a symlink so that libtiff.so.3 points to libtiff.so.4. I have to do this In Debian "etch" and later mjp On Nov 26, 2008, at 4:26 PM, "Siddharth

Re: [Freesurfer] qdec error

2008-11-26 Thread Siddharth Srivastava
Hi Prapti, I think you have to modify the $LD_LIBRARY_PATH shell variable. first find where libtiff.so.3 is. Usually "locate libtiff.so.3" will tell you where the file is at. On my machine, it is in /usr/lib/ and /usr/lib64/ then LD_LIBRARY_PATH = $LD_LIBRARY_PATH:/usr/lib64/ export LD_LIBRARY_PATH

[Freesurfer] qdec error

2008-11-26 Thread Prapti Gautam
Hi, I’ve run across the following error while trying to run qdec in my linux 64 bit computer, qdec.bin: error while loading shared libraries: libtiff.so.3: cannot open shared object file: No such file or directory Is there any specific file that I need to download or change configuration of?

Re: [Freesurfer] 2D to 3D registration

2008-11-26 Thread Doug Greve
Hi Susie, I have a tool that works very well on this type of thing, but I am not quite ready to release it (a few more weeks). It will be greatly facilitated if you acquired a whole-brain image during your scan (this can include the MPRAGE itself). If not, then you'll have to do some hand regis

[Freesurfer] 2D to 3D registration

2008-11-26 Thread Susie Heo
Hello, I would like to register a 2D EPI oblique axial slice to a 3D MPRAGE and am hoping that Freesurfer will help me do this. I have not had any luck with other fMRI software packages. Caveat: Each subject's EPI axial slice was taken parallel to his/her specific hippocampal longitudinal axis

Re: [Freesurfer] problem with intensity normalization and mri banding artifacts

2008-11-26 Thread Nick Schmansky
David, Have you tried increasing the number of iterations during the nu_correct step? Thats the first normalization step (so, you may have tried this already). You can increase the iterations from the default of 2, like this: recon-all -s -nuintensitycor -nuiterations 6 Inspect the file nu.mg

Re: [Freesurfer] Qdec error message

2008-11-26 Thread Nick Schmansky
Julia, If you haven't already tried this, can you make sure that your display is set to use 'millions' of colors (thats the Mac OS's way of setting 24bit color). If that doesnt matter, you can try using the newest freesurfer, v4.1.0, which is built against vtk v5.2, which is newer than what is in

Re: [Freesurfer] Hi, a question on lgi

2008-11-26 Thread Marie Schaer
Dear Yuanchao, I believe that in the case of polymicrogyric cortex, the lGI will decrease because the total cortical surface (i.e. the above term of the lGI equation) is drastically decreased by the numerous and shallower sulci. However, I did not have any occasion to formally challenge

[Freesurfer] Hi, a question on lgi

2008-11-26 Thread Zhangyuanchao
Dear Mr or Ms, If a subject was identified with severe polymicrogyria, which is a brain malformation marked by development of numerous microgyri, what will the lgi of the subject behave? I want to know whether the lgi of the subject would increase or decrease compared with that of the brain of