[Freesurfer] 6 direction mgh gradient sequence

2008-10-28 Thread Victoria Williams 

Hello,
   Can anyone point me to where I could find a mgh gradient file for dti 
processing with 6 directions? I am trying to rerun some old data through 
dt_recon and the gradient_mgh_dti sequence packs start at 13. Any 
suggestions?


Thanks,
Tori
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Re: [Freesurfer] 6 direction mgh gradient sequence

2008-10-28 Thread Rudolph Pienaar 
On Tuesday 28 October 2008 12:06:54 Victoria Williams wrote:
 Hello,
 Can anyone point me to where I could find a mgh gradient file for dti
 processing with 6 directions? I am trying to rerun some old data through
 dt_recon and the gradient_mgh_dti sequence packs start at 13. Any
 suggestions?


Try this:

 1   1  0
 1  -1  0
 0   1  1
 0  -1  1
 1   0  1
-1   0  1

Has worked for me, but your mileage may vary.

Cheers
-=R

-- 
Rudolph Pienaar, M.Eng, D.Eng / email: [EMAIL PROTECTED]
MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging
149 (2301) 13th Street, Charlestown, MA 02129 USA

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