Thank you for your reply and very detailed suggestion.
I appreciate your quick response and kindness.
I tried these your suggestions.
I used dwi2response dhollander scripts and tckglobal.
$ dwi2response dhollander dwi.mif out_sfwm.txt out_gm.txt out_csf.txt
$ tckglobal dwi.mif out_sfwm.txt -riso out_csf.txt -mask mask.mif -niter 1e8 -fod fod3.mif -fiso fiso3.mif tracks3.tck
But unfortunately, I could not do global tractography correctly.
This figure represents the result with WM and CSF response function.
This figure represents the result with WM, GM and CSF response function.
And, I further used MITK global tractography.
This is a result from MITK diffusion global tractography.
I think MITK diffusion’s global tractography can estimate properly.
But, MITK’s global tractography method was developed earlier than mrtrix of it.
Then, I simply think that mrtrix also could estimate tractography with low b and a small number of gradient directions.
I wrote the procedure in MITK global tractography.
- import DICOM files.
- bet (fsl command) and estimate the brain mask.
- Q-ball imaging with solid angle method.
- Gibbs global tractography
Is there any way to do that with mrtrix.
And, if you know why MITK method do that but, mrtrix couldn’t do that, please tell me.