[Mristudio-users] how to cancel the email list
Jingsheng zhou
tigerzjs at msn.com
Thu May 28 19:15:57 EDT 2009
Dear,
I don't want to receive this email. How to cancel it?
thanks
Jingshng
> Date: Thu, 28 May 2009 12:17:31 -0700
> From: dylan.alegria at gmail.com
> To: mristudio-users at mristudio.org
> Subject: [Mristudio-users] Late Stage AIR?
>
> Hi,
> I'm still a novice with DTIStudio, and I've run into a concerning
> issue during fiber-tracking. We collected a 30 direction DTI sequence
> with 2 repetitions on 25 subjects and have run it through DTI Studio
> to do fiber tracking. We did not initially register with AIR because
> we believed that our subjects were reasonably aligned and we didn't
> want to add artifacts from registration if we didn't have to.
>
> While drawing ROIs for fiber tracking some differences in tilting are
> obvious. We are considering running AIR on the processed data to
> remedy this problem. This brings me to 3 questions.
>
> 1) Given that fiber tracking operates in a 3D space, how important is
> it to have subjects in exactly the same alignment for drawing the seed
> ROIs?
> 2) Is it possible to register the FA/Eigenvector/etc. images without
> recalculating them, or going back and re-flagging bad slices?
> 3) Is it of vital importance to run AIR before doing the quality
> checks for some other reason than having similarly aligned subjects?
>
> Any help would be greatly appreciated. Thank you very much in advance!
>
> Dylan
>
>
> Dylan Alegria
> CIBSR Imaging RA
> Stanford University
> dalegria at stanford.edu
> (650) 736 0732
>
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