[Insight-users] DiffusionTensor3DReconstructionFilter - measurement frame

[alba garin]

Hello,i want to use the filter you told meAlternatively, you can use the Stochastic Tractography Filter in Slicer which does take the measurementframe into account.http://viewvc.slicer.org/viewcvs.cgi/*checkout*/trunk/Applications/CLI/DiffusionApplications/StochasticTractographyFilter/itkStochasticTractographyFilter.txx?rev=5439
but i do not know how to get the white matter probability image from my nrrd image.thanks,Alba



From: albagarin1986 at hotmail.com
To: karthik.krishnan at kitware.com
Date: Tue, 15 Feb 2011 11:14:25 +0000
CC: insight-users at itk.org
Subject: Re: [Insight-users] DiffusionTensor3DReconstructionFilter - measurement frame








thanks.






Date: Tue, 15 Feb 2011 16:40:59 +0530
Subject: Re: [Insight-users] DiffusionTensor3DReconstructionFilter - measurement frame
From: karthik.krishnan at kitware.com
To: albagarin1986 at hotmail.com
CC: insight-users at itk.org

It defaults to identity. ie the absence of the measurement frame is equivalent to saying that the coordinate frame of the gradients is the same as the that of the image orientation.

On Tue, Feb 15, 2011 at 3:20 PM, alba garin <albagarin1986 at hotmail.com> wrote:







Hello,thanks for your quick answer. What happens if in my header file there is no measurement frame? thanks,





Date: Tue, 15 Feb 2011 11:16:34 +0530
Subject: Re: [Insight-users] DiffusionTensor3DReconstructionFilter - measurement frame

From: karthik.krishnan at kitware.com
To: albagarin1986 at hotmail.com
CC: insight-users at itk.org


Yes. That's right. Please feel free to contribute a patch. The gradient direction needs to be pre-multiplied by the measurement frame. You can externally do this before supplying the container of gradient directions to the filter.



Alternatively, you can use the Stochastic Tractography Filter in Slicer which does take the measurementframe into account.

http://viewvc.slicer.org/viewcvs.cgi/*checkout*/trunk/Applications/CLI/DiffusionApplications/StochasticTractographyFilter/itkStochasticTractographyFilter.txx?rev=5439




On Mon, Feb 14, 2011 at 2:19 PM, alba garin <albagarin1986 at hotmail.com> wrote:







Good morning,
i read that the DiffusionTensor3DReconstructionFilter does not take into account the measurement frame in gradient directions. ¿is it still working this way?
thanks,




 		 	   		  

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