[Insight-users] DiffusionTensor3DReconstructionFilter

[alba garin]

Hello,
I tried to use the code of the example of gtract and it happened the same, it takes correctly the gradients but when applying the filter, DiffusionTensor3DReconstructionImageFilter, it did not create the tensor correctly. I checked that because i read the positions of the tensor and everything i get is 0.00000 and it happened the same after computing the eigenvalues and eigenvectors of the tensor. I already have taken a look in the software guide, examples of itk, and every single example that appears on the internet. thanks for your help,





From: albagarin1986 at hotmail.com
To: vincent-magnotta at uiowa.edu; insight-users at itk.org
Date: Thu, 17 Feb 2011 08:16:27 +0000
Subject: Re: [Insight-users] DiffusionTensor3DReconstructionFilter








Thanks, i am taking a look to it at the moment.






From: vincent-magnotta at uiowa.edu
To: albagarin1986 at hotmail.com; insight-users at itk.org
Subject: Re: [Insight-users]  DiffusionTensor3DReconstructionFilter
Date: Wed, 16 Feb 2011 18:27:25 +0000










Here is a link to a program that we write that uses the filter. We use NRRD files as input to this program.



http://www.nitrc.org/plugins/scmsvn/viewcvs.php/GTRACT/Cmdline/gtractTensor.cxx?root=vmagnotta&view=markup



Vince





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Department of Radiology

0453-D JCP

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Iowa City, IA 52242

E-mail: vincent-magnotta at uiowa.edu

Phone: 319-356-8255 Fax: 319-353-6275

Website: http://www.healthcare.uiowa.edu/Radiology









From: alba garin <albagarin1986 at hotmail.com>

Date: Wed, 16 Feb 2011 08:15:47 +0000

To: <insight-users at itk.org>

Subject: [Insight-users] DiffusionTensor3DReconstructionFilter






Hi everyone,



im getting mad trying to use the DiffusionTensor3DReconstructionFilter with a nrrd diffusion file. I store properly the gradients and after using the filter I get a image with pixels of DiffusionTensor3D. the problem is that this image has as voxels only
 zeros...
anyone can help me, please?



Thanks,
Alba

 



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