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matthew.costello
Starting Member
5 Posts |
 Posted - Feb 14 2007 : 5:21:45 PM
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Hi,
We need to align our T1s to our DTIs. I know that we can do this manually with xmr, but does anyone know of an easier (automated) way?
Thanks! Matt |
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josh.bizzell
BIAC Staff
USA
118 Posts |
Posted - Feb 14 2007 : 7:07:34 PM
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Matt,
You can use any registration program to do this (SPM, AIR, FSL). However, you might want to choose one that can do a higher dimensional registration (warping) rather than an affine registration. The reason for this is that, even though your T1 and DTI are from the same subject, the distortion in the DTI might cause a mis-registration with any affine method. I know AIR has higher-order warping, as well as a program called RView. I'm not sure if SPM or FSL will do higher-order, but I don't think they do.
The Imagine tool, developed by the Image Analysis lab at UNC, has RView embedded within. It's fairly user friendly, though you may need to use the GIPL image format (though technically, you can use Imagine to convert Analyze to GIPL as well). You can download it here:
http://www.ia.unc.edu/dev/download/imagine/index.htm
There is a tutorial for the higher order warping (non-rigid registration - Example 4) here:
http://www.ia.unc.edu/dev/tutorials/Imagine/index.htm
Josh Bizzell |
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matthew.costello
Starting Member
5 Posts |
Posted - Feb 15 2007 : 09:23:19 AM
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Thanks for your advice, Josh. I tried to download Imagine, but it requires password permission. Do you know whom I can contact at UNC to get this? In the meantime, I will check out AIR and see if it has a higher-order registration.
Matt
quote:
Originally posted by josh.bizzell
Matt,
You can use any registration program to do this (SPM, AIR, FSL). However, you might want to choose one that can do a higher dimensional registration (warping) rather than an affine registration. The reason for this is that, even though your T1 and DTI are from the same subject, the distortion in the DTI might cause a mis-registration with any affine method. I know AIR has higher-order warping, as well as a program called RView. I'm not sure if SPM or FSL will do higher-order, but I don't think they do.
The Imagine tool, developed by the Image Analysis lab at UNC, has RView embedded within. It's fairly user friendly, though you may need to use the GIPL image format (though technically, you can use Imagine to convert Analyze to GIPL as well). You can download it here:
http://www.ia.unc.edu/dev/download/imagine/index.htm
There is a tutorial for the higher order warping (non-rigid registration - Example 4) here:
http://www.ia.unc.edu/dev/tutorials/Imagine/index.htm
Josh Bizzell
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Alignment
