Dear Mithra,

In addition to what Mark suggested.... Have you compared log files (something like "eddy_DTI_FSL_4D_****.ecclog").  Are they the same?


Hedok

Mithra wrote:

Hello Mr.Glaser,

I checked the Eddy current result for both the versions and they happen to be the same. I checked the intensities at different points/slices and they match.

Thanks.
Mithra.

On Thu, Jun 25, 2009 at 2:27 PM, Matt Glasser <[log in to unmask] <mailto:[log in to unmask]>> wrote:

   It might also be that eddy_correct worked better before than it
   does now.
   Have a look at the corrected 4D volume with FSLView's movie option
   to see if
   it is doing a good job.

   Peace,

   Matt.

   -----Original Message-----
   From: FSL - FMRIB's Software Library [mailto:[log in to unmask]
   <mailto:[log in to unmask]>] On Behalf
   Of Hedok Lee
   Sent: Thursday, June 25, 2009 2:16 PM

   To: [log in to unmask] <mailto:[log in to unmask]>
   Subject: Re: [FSL] Different FA scores for the same subject

   Dear Mithra,

   This looks to me like eddy corrected vs eddy uncorrected FA's.  Is it
   possible that you applied eddy correction in one version and left
   another version uncorrected? Images are kind of blurry so it's
   hard to tell.

   Regards,

   Hedok

   Mithra wrote:
   > Hello FSLers,
   >
   > (Sorry if you have received multiple copies. I was able to
   attach the
   images
   > this time. )
   >
   > I am having trouble with the DTI analysis and not sure how to
   solve this.
   >
   > We have been using version 4.0.2 to analyze data. Recently we
   upgraded our
   > server system. We installed the same version that was in the old
   server.
   >
   > The results I get from the newly installed server is different
   from what I
   > had done a year ago with the same version.  I am not sure what I
   am doing
   wrong.
   >
   > I have attached the FA scores from both the times (The original
   one done
   > about a year ago in the old server and the recent one done a
   couple of
   days
   > ago in the new server). The original one done last year showed good
   > contrasts. The recent one did not.
   >
   > Has anybody faced this situation?
   > Any help would be appreciated.
   >
   > Thank you.
   > Regards,
   > Mithra.
   >
   >
   >
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