[Freesurfer] grad_unwarp error

2008-04-22 Thread Bill Monaco
Hi, I'm in the stable 4 environment of FreeSurfer and am getting an error when I try to grad_unwarp a volume that comes out of unpacksdcmdir. The rror I get is: gradfilename is /autofs/space/windu_006/users/grad_unwarp_bash_MartinosCenter/grad_unwarp_tables/avanto.gwv. Loading... Unwar

[Freesurfer] Unknown error

2008-04-22 Thread Jerry Yeou-Wei Chen
Hello, I am having trouble deciphering why I got the error attached below. Any suggestions would be greatly appreciated! Thanks, - Jerry Tue Apr 22 10:15:22 EDT 2008 talairach_avi done cp transforms/talairach.auto.xfm transforms/talairach.xfm # [

Re: [Freesurfer] Unknown error

2008-04-22 Thread Nick Schmansky
Jerry, I'm not sure why it exited without giving a better message, but this is a clue why it exited: before smoothing, mri peak at 0 after smoothing, mri peak at 0, scaling input intensities by inf the mri peak is at zero, which is wrong (it should be around 116/117 or so). if you view nu.m

Re: [Freesurfer] grad_unwarp error

2008-04-22 Thread Nick Schmansky
Bill, You can try breaking apart the flash30.mgz file like this: foreach f (0 1 2 3 4 5 6 7) mri_convert -f $f flash30.mgz flash30_f${f}.mgz end and grad_unwarp each file. Nick On Tue, 2008-04-22 at 08:24 -0400, Bill Monaco wrote: > Hi, > > I'm in the stable 4 environment of FreeSurfer

Re: [Freesurfer] Unknown error

2008-04-22 Thread Jerry Yeou-Wei Chen
Thanks for the reply, Nick. I think you correctly identified the problem. nu.mgz is oriented correctly, but looks very dark... However, it looks decent if I adjust the brightness/contrast I have other scans that were processed without error, and the orig.mgz, and nu.mgz also appear quite dark (

Re: [Freesurfer] Unknown error

2008-04-22 Thread Nick Schmansky
Jerry, At this point, I think Bruce will need to jump-in to answer (he is out- of-town today). I think he will ask about your scan parameters, ie, how is your scanner setup? It sounds as if something is not quite right in the data coming-off the scanner. Nick On Tue, 2008-04-22 at 14:26 -0400

[Freesurfer] Freesurfer source code

2008-04-22 Thread Petros Petrosyan
Hi I found via google that the freesurfer is open source and wanted to download the sources. I found one following URL http://surfer.nmr.mgh.harvard.edu/fswiki/DevelopersGuide. The sources are available at CVS repository which requires USERname and MACHINEname to access them. I am wondering if