AFNI Message Board

Dear AFNI users-

We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:

https://discuss.afni.nimh.nih.gov

Existing user accounts have been migrated, so returning users can login by requesting a password reset. New users can create accounts, as well, through a standard account creation process. Please note that these setup emails might initially go to spam folders (esp. for NIH users!), so please check those locations in the beginning.

The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.

Sincerely, AFNI HQ

History of AFNI updates  

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May 08, 2019 02:32PM
Hi AFNI experts,

I'm trying to do probabilistic tractography with 3dDWUncert & 3dProbTrackID. I followed the instructions on this blog. Here it is recommended to rotate the bvecs. However, this blog is rather old and might be outdated.
Therefore my question: Is it enough to convert by bvecs like this
1dDW_Grad_o_Mat++ \
    -in_col_vec bvecs \
    -in_bvals bvals \
    -out_col_matA bvecs_matA.txt
and use the output then for 3dDWUncert & 3dProbTrackID?

Would be great to get some feedback on this!
Cheers,
Steph
Subject Author Posted

Rotate bvecs for motion correction?

StephanieWinkelbeiner May 08, 2019 02:32PM

Re: Rotate bvecs for motion correction?

ptaylor May 08, 2019 03:25PM

Re: Rotate bvecs for motion correction?

Peter Molfese May 08, 2019 04:18PM

Re: Rotate bvecs for motion correction?

StephanieWinkelbeiner May 09, 2019 09:44AM