When the DWIs are transformed to LAS and processed with eddy_correct, the
same transformations are applied to the respective bvecs.
On Fri, 3 Feb 2012, Xiangzhen Kong wrote:
> Hi, all~
> ?
> I use trac-all with .nii data, not dicom. So I have to specify the bvecs and
> bvals in the config file.
> Trac-all requires a bvecs file in 3 columes, but FSL need that in 3 raws.
> I wonder what does trac-all do on the bvecs file that I specify.
> And I have check the code 'trac-preproc' and the log, but found nothing,
> except copy and Eddy-current "correction".
> ?
> ps: The orientation of my dicom and .nii fils are both LPS, and the bvecs is
> read from the DICOM header via nibabel.
> But FSL requires LAS. I thinks trac-all have done the transposition on the
> bvecs somewhere.
> What orientation of bvecs does trac-all need when run with .nii files?
> ?
> Thanks!
> ?
> Xiangzhen
> ?
> 2012-02-03
> ?
>
>
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