[Mristudio-users] unable to generate FA image

[vikey.han]

Thanks, susumu, I doubt the FA image because I can't get the correct fiber streamlines, 
but I think I have selected the corrected parameters. Could you help me check it? the attachment includes the data and parameters.

susumu <susumu at mri.jhu.edu> wrote：


Hi Vikey,

 

It seems the image looks fine. If you are concerning about the bright signals outside the brain, that’s because FA was calculated for the noise floor.

To remove these signals from outside the brain, please raise the threshold value (the default is “10”), which you can specify when you do the tensor calculation. 

 

From:mristudio-users-bounces at mristudio.org [mailto:mristudio-users-bounces at mristudio.org] On Behalf Of vikey.han
Sent: Tuesday, March 31, 2009 11:05 PM
To:Mristudio-users at mristudio.org
Subject: [Mristudio-users] unable to generate FA image

 

Hi everyone,

    I use DTIstudio to compute FA image, but find the result is not correct, the attachment is the snapshot of FA image, could you tell me what mistakes I make probably?

 thanks,  

      vikey

  






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