[Mristudio-users] how to apply brain mask for Tensor calculation.

[Jin Shengcheng]

Hi 
   Do you use noise level to remove the noise?
   I had another question about DTI computing. How about the relationship between gradients and tensor tensor xx tensorxy tensorxz....?
   Can we reduce some linear equations to calculate the tensors? 
   I test it, The difference between is very bigger.
   Thanks
   Best Regards
Jin shengcheng

>-----????-----
> ???: "Youngmin Huh" <ymin1123 at gmail.com>
> ????: 2013-08-01 19:26:38
> ???: mristudio-users at mristudio.org
> ??: 
> ??: [Mristudio-users] how to apply brain mask for Tensor calculation.
> Hi,
> 
> There is too much noise outside the brain, so I want to apply brain
> 
> mask to eliminate the noise.
> 
> I tried to use ROI editor to make brain mask, using skull strip. I
> 
> obtained mask.nii on scrolldown box and saved it to a dat file.
> 
> but I could not load it for tensor calculation. I found 'select a
> 
> mask-image' option, but only subjectname.dat-0, subjectname.dat-1,
> 
> ...-2, ...-3 was available.
> 
> how could I apply mask image for Tensor calculation?
> 
> 
> 
> I would appreciate any comments.
> 
> 
> 
> 
> 
> YM Huh
> 
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