[Camino-users] the problem with dt2nii

[mirabelle]

Dear Camino experts，


    I entered the following command:


    
    fsl2scheme -bvecfile bvecs -bvalfile bvals -bscale 1 > A.scheme2


    image2voxel -4dimage 4Ddwi_b1000.nii.gz -outputfile dwi.Bfloat


    dtfit dwi.Bfloat 4Ddwi_b1000_bvector.scheme -bgmask brain_mask.nii.gz -outputfile dt.Bdouble


    dt2nii -inputfile dt.Bdouble -outputroot nifti_ -header 4Ddwi_b1000.nii.gz


             
   This produces nifti_dt.nii.gz, nifti_lnS0.nii.gz, and nifti_exit.nii.gz. The Tutorials tell me that the nifti_dt.nii.gz is a 5-dimensional image with six components . 
  
   Read it use command: niftiheader -readheader nifti_dt.nii.gz 
   The dimension of the image is 91 109 91 1 6
   I know that 91 109 91 is the size of the image. 6 indicate the six components of DT. 
   What do '1' represent?
  I would be grateful if you could give some suggestions.


  I’m looking forward to your response. Feel free to contact me anytime.


Sincerely,
mirabelle
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