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please remove me from msiling list<BR> <BR>> Date: Thu, 28 May 2009 12:17:31 -0700<BR>> From: dylan.alegria@gmail.com<BR>> To: mristudio-users@mristudio.org<BR>> Subject: [Mristudio-users] Late Stage AIR?<BR>> <BR>> Hi,<BR>> I'm still a novice with DTIStudio, and I've run into a concerning <BR>> issue during fiber-tracking. We collected a 30 direction DTI sequence <BR>> with 2 repetitions on 25 subjects and have run it through DTI Studio <BR>> to do fiber tracking. We did not initially register with AIR because <BR>> we believed that our subjects were reasonably aligned and we didn't <BR>> want to add artifacts from registration if we didn't have to.<BR>> <BR>> While drawing ROIs for fiber tracking some differences in tilting are <BR>> obvious. We are considering running AIR on the processed data to <BR>> remedy this problem. This brings me to 3 questions.<BR>> <BR>> 1) Given that fiber tracking operates in a 3D space, how important is <BR>> it to have subjects in exactly the same alignment for drawing the seed <BR>> ROIs?<BR>> 2) Is it possible to register the FA/Eigenvector/etc. images without <BR>> recalculating them, or going back and re-flagging bad slices?<BR>> 3) Is it of vital importance to run AIR before doing the quality <BR>> checks for some other reason than having similarly aligned subjects?<BR>> <BR>> Any help would be greatly appreciated. Thank you very much in advance!<BR>> <BR>> Dylan<BR>> <BR>> <BR>> Dylan Alegria<BR>> CIBSR Imaging RA<BR>> Stanford University<BR>> dalegria@stanford.edu<BR>> (650) 736 0732<BR>> <BR>> _______________________________________________<BR>> Mristudio-users mailing list<BR>> Mristudio-users@mristudio.org<BR>> http://lists.mristudio.org/mailman/listinfo/<BR>> Unsubscribe, send a blank email to: Mristudio-users-unsubscribe@mristudio.org mristudio-users<BR><br /><hr />Windows Live helps you keep up with all your friends, <a href='http://go.microsoft.com/?linkid=9660824' target='_new'>in one place.</a></body>
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