On Fri, Sep 13, 2013 at 1:37 PM, Anastasia Yendiki <ayendiki@nmr.mgh.harvard.edu> wrote:

Hi Alan - Sorry, tracula doesn't do voxel-based analyses, only tract-based.

a.y

On Fri, 13 Sep 2013, Alan Francis wrote:

Hi Anastasia:

Yes I generated the left CST on a single subject using the Freeview -tv
option. But my boss wanted to know if it was possible to do a voxelwise
group analysis and show mean differences on a single inflated brain.

thanks,

Alan


On Fri, Sep 13, 2013 at 11:43 AM, Anastasia Yendiki
<ayendiki@nmr.mgh.harvard.edu> wrote:

      I see, then it's an ROI analysis, where the tract is the ROI.
      Isn't it sufficient for you to visualize the tracts in an
      example subject with the -tv option in freeview? What would you
      like to do beyond that?

      On Fri, 13 Sep 2013, Alan Francis wrote:

            Hi Anastasia:

            I am looking at Average AD in these tracts.

            thanks,

            Alan


            On Fri, Sep 13, 2013 at 11:37 AM, Anastasia Yendiki
            <ayendiki@nmr.mgh.harvard.edu> wrote:

                  Hi Alan - Are you looking at average AD over
            the whole tract, or
                  AD along the tract?

                  a.y

                  On Fri, 13 Sep 2013, Alan Francis wrote:

                        Hi Anastasia:

                        Thanks for your quick reply. We would
            like to look
                        at the left and right
                        Cortico-spinal tract AD between the
            groups. Also
                        left and right ATR AD if
                        possible.

                        thanks again,

                        Alan


                        On Fri, Sep 13, 2013 at 10:53 AM,
            Anastasia Yendiki
                        <ayendiki@nmr.mgh.harvard.edu> wrote:

                              Hi Alan - Glad to hear that you
            have an
                        interesting finding! Can
                              you describe what type of thing
            you want to
                        visualize a bit
                              more? If it's not on the surface,
            freeview
                        will more likely do
                              the trick rather than qdec.

                              a.y

                              On Fri, 13 Sep 2013, Alan Francis
            wrote:

                                    Hi Anastasia and
            FreeSurfers:

                                    Is it possible to model
            Tracula data on
                        Qdec? I have
                                    some interesting
                                    findings in FA and AD
            between two groups
                        that I am
                                    hoping to visually
                                    represent on a single brain.

                                    Any advice would be deeply
            appreciated.

                                    thank you,

                                    Alan




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