Which subject ID is your dataset? Maybe I can check what’s going wrong here.
Did you try flipping the gradients?
Von: Lidia Konopleva [mailto:lidia.konopl...@gmail.com]
Gesendet: Montag, 27. März 2017 14:19
An: Neher, Peter <p.ne...@dkfz-heidelberg.de>
Betreff: Re: [mitk-users] Qball multishell reconstruction
Thank you! it works for multishell data. I also have one more HCP dataset (year
2014), i think it has a different acquisition scheme. FODs from Qball
reconstruction and also tensors principal directions are fine in coronal and
transversal planes, but there is something strange with principal directions of
tensors in saggital plane in gyrus . Can I fix this problem with transformation
of gradient directions?
2017-03-27 9:47 GMT+00:00 Neher, Peter
<p.ne...@dkfz-heidelberg.de<mailto:p.ne...@dkfz-heidelberg.de>>:
Hi Lidia,
MITK internally uses a different gradient convention than the HCP. We are
planning on fixing it, but currently you have to flip the gradient vectors
manually in the Y-dimension (y --> -y) before processing the HCP datasets in
MITK.
If you are using the current master of MITK, you can use the “Gradients”-Tab of
the Preprocessing view to flip the gradient directions. Otherwise you have to
do it manually in the .bvecs file.
Did that solve your problem?
Best,
Peter
Von: Лидия Коноплева
[mailto:lidia.konopl...@gmail.com<mailto:lidia.konopl...@gmail.com>]
Gesendet: Montag, 27. März 2017 10:33
An: mitk-users@lists.sourceforge.net<mailto:mitk-users@lists.sourceforge.net>
Betreff: [mitk-users] Qball multishell reconstruction
Hi!
I'm trying to import Human Connectome Project multishell Data to MITK as fsl
files. But when I do Qball multi shell reconstruction of data, there are some
mistakes in FODs orientation. Gradients directions are in fsl measurement
frame. Could you help me with this problem, please?
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