[Mristudio-users] image coregistration

[Seongjin]

You can save a set of generated AIR_filenames in a single file with adjusted
gradient table. (Gradient table will be changed after the registration. You
can find the adjusted gradient file at the end of the saved Airmatrix file.)
Then open the save AIR_file with the the adjusted gradient table. The rest
of the process is the same as usual process.

-SC

On Tue, May 25, 2010 at 2:42 PM, Youngbin Kwak <youngbin at umich.edu> wrote:

> Hello all,
>
> I'm trying to create an ROI for performing tractography. What I'm planning
> on is to create an ROI that is defined in a normalized template and then
> convert it to native space. In order to do this, I'd first like to
> coregister a high-resolution anatomical image to the b0 image, so that
> however I create ROI on the anatomy file would parallel the location of DTI
> images.
>
> In order to do this, I've loaded the anatomical image and selected
> mutual-Info image registration option. I chose b0 image as reference and the
> anatomical image as image to be registered and used rigid body
> transformation. However there was an error message saying "RegImgFile.tmp
> was not found". Can someone help me out resolve this issue?
>
> Another question I have is, when I perform AIR registration for all the dwi
> images, there are new files created labled AIR_filename.
> Does the program know that it should use the newly created files (i.e.
> AIR_filename) to perform tensor calculation and the rest of the step?
> Or should I get rid of the original guys from the image tab and only have
> the new files available before performing tensor calculation?
>
> thanks a bunch!
>
> Youngbin
>
> --
> Youngbin Kwak M.S.
> Ph.D. candidate, Neuroscience Graduate Program
> Cognitive Science & Cognitive Neuroscience Program
> University of Michigan
>
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