Hi Yuko, your dicom file might be from a different versioned scanner than dt_recon is used to seeing. If so, then it cannot extract the bvecs and bvals. If you supply them in a file on the command line, it should run properly. doug
Yuko Yotsumoto wrote:
Hello,
I'm having a problem with dt_recon on data scanned by Siemens TrioTim. I'm using v4.5.0, with Mac OS 10.6.8.
dt_recon ran for a while, and stopped with an error "ERROR: cannot extract sWiPMemBlock.alFree[8] from /Users/yuko/Documents/FreeSurfer/sessions/YDTI/YD11A/dwi-infodump.dat"
I found the same errors reported to this mailing list, but found no solution. https://mail.nmr.mgh.harvard.edu/pipermail//freesurfer/2011-August/019755.ht... http://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg07935.html
In YDTI/YD11A/ folder, I have the following files dt_recon.log dwi-ec.ecclog dwi-ec.nii dwi-infodump.dat dwi.nii mri_glmfit.log
In dwi-infodump.dat, I see bunch of lines, but I don't see "sWiPMemBlock.alFree".
Please help! Thanks, Yuko Yotsumoto
#@#------------------------------- Fitting Tensors Wed Dec 7 10:15:52 JST 2011 cd /Users/yuko/Documents/FreeSurfer/subjects mri_glmfit --y /Users/yuko/Documents/FreeSurfer/sessions/YDTI/YD11A/dwi-ec.nii --glmdir /Users/yuko/Documents/FreeSurfer/sessions/YDTI/YD11A --dti /Users/yuko/Documents/FreeSurfer/sessions/YDTI/YD11A/dwi-infodump.dat
$Id: mri_glmfit.c,v 1.138.2.15 2009/07/27 17:43:10 greve Exp $ cwd /Users/yuko/Documents/FreeSurfer/subjects cmdline mri_glmfit --y /Users/yuko/Documents/FreeSurfer/sessions/YDTI/YD11A/dwi-ec.nii --glmdir /Users/yuko/Documents/FreeSurfer/sessions/YDTI/YD11A --dti /Users/yuko/Documents/FreeSurfer/sessions/YDTI/YD11A/dwi-infodump.dat sysname Darwin hostname Yukos-iMac.local machine i386 user yuko FixVertexAreaFlag = 1 UseMaskWithSmoothing 1 OneSampleGroupMean 0 y /Users/yuko/Documents/FreeSurfer/sessions/YDTI/YD11A/dwi-ec.nii logyflag 1 X /Users/yuko/Documents/FreeSurfer/sessions/YDTI/YD11A/dwi-infodump.dat usedti 1 glmdir /Users/yuko/Documents/FreeSurfer/sessions/YDTI/YD11A IllCondOK 0 DoFFx 0 Creating output directory /Users/yuko/Documents/FreeSurfer/sessions/YDTI/YD11A Loading y from /Users/yuko/Documents/FreeSurfer/sessions/YDTI/YD11A/dwi-ec.nii Using DTI bValue = 700 ERROR: cannot extract sWiPMemBlock.alFree[8] from /Users/yuko/Documents/FreeSurfer/sessions/YDTI/YD11A/dwi-infodump.dat
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