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Dear FSLers, we noticed that the bvecs differ in dependence of the readout method. An inhouse script reads out the dicom entries as does spm with the helper from the diffusion toolbox. We already noticed a deviance of these to the gradient table our physicist put in but this was rather small (maybe due to rounding). Now we found out that the dcm2nii output provides yet another gradient table. If I understood Chris Rorden correctly, this is, because dcm2nii reports the bvecs in NIFTI-space. Which one should be used for dtifit, and even more important for bedpostx? Thanks for your answer, Mareike -- Mareike Menz NeuroImage Nord Lübeck University Medical Center Hamburg-Eppendorf, Bldg. S10 Martinistr. 52 20246 Hamburg Germany +49 40 7410 53683 [log in to unmask] ------------------------- () ascii ribbon campaign /\ - against html mail -- Pflichtangaben gemäß Gesetz über elektronische Handelsregister und Genossenschaftsregister sowie das Unternehmensregister (EHUG): Universitätsklinikum Hamburg-Eppendorf Körperschaft des öffentlichen Rechts Gerichtsstand: Hamburg Vorstandsmitglieder: Prof. Dr. Jörg F. Debatin (Vorsitzender) Dr. Alexander Kirstein Ricarda Klein Prof. Dr. Dr. Uwe Koch-Gromus