Hi,
I would run eddy correct before BET.
It may be that the older version was less sensitive to this, but
BET induces artificial boundaries in the image which will impair
the ability of eddy correct to work well.
So try it the other way around and see if that helps.
All the best,
Mark
On 25 Jun 2009, at 20:25, Mithra wrote:
> Hello Mr.Lee,
> I applied Eddy Correction to the data both the times.
> (The order I followed: BET, Eddy Correction, DTI Fit)
>
> Thanks.
> - Mithra.
>
> On Thu, Jun 25, 2009 at 2:16 PM, Hedok Lee <[log in to unmask]> wrote:
> 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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