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Dear Sandra, The email below (from the list) contains a script that lets you extract the parameters of the eddy-current correction in the same way that they are done for the functional pipeline in FEAT. I think that should give you what you want. https://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=FSL;e2a42b99.1101 All the best, Mark On 4 Aug 2011, at 15:46, Woodman, Sandra wrote: > Hello FSL users, > > We were wondering if there is any way to obtain the parameters used for > motion correction in the preprocessing of DTI images during the Eddy > Current correction (eddy_correct)? We know that motion correction and eddy > current correction are done with the same tool, but are not sure how the > two are separated and where we can find a report of what was done. We > have found one file (data.ecclog) but are not sure what the > values in the file correspond to. > > We are trying to pull out these parameters in a way similar to what one > would do with fMRI if one wanted to use motion as a covariate in the > analyses. In our particular case we would like to calculate actual > motion correction values (in each plane) for each subject and show that > our patient cohort did not move more than our control cohort. > > We have searched around the forums and we found some info regarding > rotating the bvec files, but we did not think that was what we wanted. > > Thank you for any help! > > Sandra > > > Sandra Woodman > Mood and Motor Control Laboratory > Athinoula Martinos Center for Biomedical Imaging > > > > > The information in this e-mail is intended only for the person to whom it is > addressed. If you believe this e-mail was sent to you in error and the e-mail > contains patient information, please contact the Partners Compliance HelpLine at > http://www.partners.org/complianceline . If the e-mail was sent to you in error > but does not contain patient information, please contact the sender and properly > dispose of the e-mail. > <data.ecclog>