Hello --<div>The entire MRIStudio suite is available on the MRIStudio website:</div><div><a href="https://www.mristudio.org/wiki/installation">https://www.mristudio.org/wiki/installation</a><br clear="all">~~<br>Issel Anne L. Lim<br>
PhD Candidate<br>Biomedical Engineering<br>Johns Hopkins University<br><a href="http://alum.mit.edu/www/issel">http://alum.mit.edu/www/issel</a><br><a href="mailto:issel@jhu.edu">issel@jhu.edu</a><br>
<br><br><div class="gmail_quote">On Thu, Jun 2, 2011 at 9:25 AM, Huang, Shiliang <span dir="ltr"><<a href="mailto:HuangS4@uthscsa.edu">HuangS4@uthscsa.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Hi All<br>
Where can I get the DiffeoMap software?<br>
<br>
Thanks<br>
<br>
Shiliang<br>
<br>
-----Original Message-----<br>
From: <a href="mailto:mristudio-users-bounces@mristudio.org">mristudio-users-bounces@mristudio.org</a> [mailto:<a href="mailto:mristudio-users-bounces@mristudio.org">mristudio-users-bounces@mristudio.org</a>] On Behalf Of susumu mori<br>
Sent: Wednesday, June 01, 2011 3:26 PM<br>
To: DTI Studio, ROI Editor, DiffeoMap Questions/Support<br>
Subject: Re: [Mristudio-users] Co-registeration of DTI data with T1 or T2 data<br>
<br>
You can do that using DiffeoMap.<br>
<br>
If you assume that the subject didn't move, you can use a tool to<br>
change the location, rotation, FOV, and matrix size to theoretically<br>
align the images. Otherwise, you can use a rigid transformation using<br>
AIR or MI in DiffeoMap. You can submit two images with different<br>
FOV/matrix and the resultant image will have exactly the same<br>
dimensions as the template image. If the initial location of the brain<br>
within the FOVs are too different, you may need some pre-adjustment to<br>
bring the brain positions to a similar location within the FOVs.<br>
<br>
I recommend you to do the registration of DTI data after tensor<br>
calculation. If you move raw DWIs, you need to reorient the gradient<br>
table too. Once you calculate scalar maps like FA, MD, EVs, then you<br>
can register them to T1/T2 just like a regular image. If you want to<br>
register a tensor map, you have to load it through the "Open *.d"<br>
button so that DiffeoMap knows that it has to do tensor reorientation<br>
procedure.<br>
<br>
Because b0 and T2 have very similar contrast, you can do registration<br>
between T2 and b0, save the transformation matrix and later you can<br>
apply the matrix to any DTI-derived maps like FA, MD, EV, tensor, etc.<br>
Avoid transforming vector maps. Instead, transform the tensor and then<br>
calculate vector maps.<br>
<br>
You can also do non-linear warping using LDDMM between b0 and T2 to<br>
minimize B0-susceptibility distortion.<br>
<br>
On Wed, Jun 1, 2011 at 1:46 PM, Syed Salman Shahid<br>
<<a href="mailto:SyedSalman.Shahid@usq.edu.au">SyedSalman.Shahid@usq.edu.au</a>> wrote:<br>
> Hi,<br>
> Just wondering if it is possible in DTI studio environment to co-register DTI data set with T1 or T2 data set before the DTI processing without losing any tensor information.<br>
><br>
> With regards<br>
> Salman<br>
><br>
><br>
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</blockquote></div><br></div>