In general, there are two approaches;<br><br>1) You have a region of interest (in your case, the cingular cortex) and you don't have a priori knowledge (or assumption) about which tract is the one you are interested. So, you will use tractography to identify it. In this case, you'd better define the entire ROI (the cingular cortex) and identify the tract of your interest after tractography. Here you need 3D ROI, for which RoiEditor could be easier to use.<br>
<br>2) You use existing knowledge. For example, in your case, the cingulum bundle is the best candidate that is known to be associated with the cingular cortex. Then, your question is now how to reconstruct the cingulum, which can be found in one of our tractography protocol papers (Wakana et al, NeuroImage).<br>
<br>Susumu<br><br><div class="gmail_quote">On Tue, Jan 12, 2010 at 5:56 AM, Miguel Burgaleta <span dir="ltr"><<a href="mailto:miguel.burgaleta@uam.es">miguel.burgaleta@uam.es</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
Dear all,<br>
<br>
I would like to use DTIStudio to do tractography of the WM pathways<br>
associated to the anterior cingulate cortex. Could you please suggest<br>
the best way to do this? Drawing one single medial sagittal ROI for<br>
the ACC itself is what I had in mind, but am not sure whether it is<br>
correct or not.<br>
<br>
Any help is highly appreciated.<br>
<br>
Best,<br>
Miguel<br>
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