<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><br></div>Hi Susumu, <div><br></div><div>Not sure if that solves my problem... Also, Hangyi's answer was:</div><div><br></div><div><blockquote type="cite"><div>please beware that the Analyze file is in Format 7.5. it is left-handed system.<br>if you loaded it as Nifti-Analyze, the program may loaded as Nifti format, which is right-hand system.<br></div></blockquote></div><div> </div><div>Let me give you more info.</div><div><br></div><div>I processed my DWI in FSL for motion and eddy currents correction. Saved the images as 4D with .img extension, and opened them in DTIStudio as REC (the only option that worked out... when trying to open as Analyze, it complained about the header. None of the other format options worked). Did the fiber tracking and saved the fiber as Analyze. </div><div><br></div><div>Please see attached a capture of a small bundle (but strategically located in the brain to track potential rotations) as it was reproduced in DTIStudio, and then opened with fslview. First, in DTIStudio, right seems to be right. Second, it looks like, when importing into FSL, the fiber is flipped along the AP and SI axes, and perhaps LR as well...</div><div><br></div><div>This looks like a real mess...Any suggestions? Perhaps start from the scratch?? ;)</div><div>Thanks,</div><div>Miguel</div><div><br></div><div><br></div><div></div></body></html>