Hi Doug,

Thank you for your reply.
> If so, then it cannot extract the bvecs and bvals. If you supply them in a 
> file on the command line

I don't quite understand how --b works with dt_recon.

I did:
dt_recon --i 
/Users/yuko/Documents/FreeSurfer/raw/AGY11ADTI/DTIs/IM-0011-0001.dcm --s AGY11 
--o /Users/yuko/Documents/FreeSurfer/sessions/YDTI/YD11A

and it stopped after creating dwi.nii and dwi-ec.nii.
I thought dt_recon is the command to compute bvals and bvecs. How do I supply 
bvecs and bvals on the command line?

Yuko


On Dec 10, 2011, at 2:24 AM, Douglas N Greve wrote:

> 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.html
>> http://www.mail-archive.com/[email protected]/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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>> [email protected]
>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
>> 
>> 
>>  
> 
> -- 
> Douglas N. Greve, Ph.D.
> MGH-NMR Center
> [email protected]
> Phone Number: 617-724-2358 Fax: 617-726-7422
> 
> Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
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> 
> 
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