[Mrtrix-discussion] rotating gradient directions

[Patai, Zita]

Dear MRTrixers

I have a dataset in which scans were acquired in 3x20 directions, ie. I have 3 sets of data per subject.
I was wondering if there was a way to correct for gradient direction rotation, if for example the subject moved between scans, is there a way to correct for the movement but also then to adjust the b-values accordingly?

I have seen that this is possible in FSL, but I wanted to just stick to MRTrix if that was possible.

Also, is this actually an important issue? If the head-motion is very large, presumably motion correction will not work anyway?

Thanks for your help,
zita

_________________________
Eva Zita Patai
Postdoctoral Research Associate
UCL, Institute of Child Health
e.patai at ucl.ac.uk<mailto:e.patai at ucl.ac.uk>
020 7905 2730

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.nitrc.org/pipermail/mrtrix-discussion/attachments/20130419/f0b6debd/attachment.html