Yes, you'd need phantom data and your --cni flag. Where are you based? Siemens now offers a fix. Why don't you email me directly offlist. Cheers, Andreas Am 06.07.12 13:31 schrieb "SUBSCRIBE FSL Anonymous" unter <[log in to unmask]>: >Hi Andreas, > Thanks-- this article covers exactly what 'm talking about, but how do >you then add another parameter for the artifact co-regressor in the >tensor fitting in FSL? I normally just extract the brains and then >reconstruct diffusion tensors with DTIFIT, manually choosing the input >files. To use a co-regressor like the one in the article, can I still use >the DTIFIT menu or do I need to put a --cni in the command line? Sorry >for the naive questions, I'm brand-new to Linux as well...