Hi - you should still check that the 'line' view in FSLView looks
correct in several places in the brain, to make absolutely sure that
the order and the sign of the different rows in your bvecs file are
correct.
On 28 Feb 2008, at 03:27, James Sheehan wrote:
> THANKS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! worked
> perfectly!!!!!!!!!!!!!!!1 ---------------------------------------- >
> Date: Wed, 27 Feb 2008 21:29:30 -0500 > From: [log in to unmask] >
> Subject: Re: [FSL] Why do my subjects have blue Corpus Callosums
> (after DTIfit)? > To: [log in to unmask] > > You need to swap the
> first and third rows of your bvecs file (x and z > gradient
> directions). I assume you have a red cortico-spinal tract as well? >
> > Peace, > > Matt. > > -----Original Message----- > From: FSL -
> FMRIB's Software Library [mailto:[log in to unmask]] On Behalf > Of
> James Sheehan > Sent: Wednesday, February 27, 2008 8:58 PM > To: [log in to unmask]
> > Subject: [FSL] Why do my subjects have blue Corpus Callosums
> (after DTIfit)? > > Hello all, > > I have been working on a DTI
> study following the Dartmouth guide as well as > a supplement that a
> friend wrote. I run into a snag all of my subjects have > bright
> blue corpus callosums after running DTIfit and checking the image >
> against the dartmouth guide they should be red. I am a first timer
> here so I > need explicit instructions. As far as we can figure I
> probably have an error > with "radiological" vs "neurological"
> ordered dti sets. I've looked at the > FAQ but just don't know where
> to start/ which files to edit/ if this is even > the correct thing
> to do. Can anyone help? > > I have attached a screenshot. > > Thank
> you. > -J
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Stephen M. Smith, Professor of Biomedical Engineering
Associate Director, Oxford University FMRIB Centre
FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
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