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Thanks Steve, I think that's going to help me with my problem. Marcus ---- Original message ---- >Date: Fri, 4 Apr 2008 09:00:15 +0100 >From: Steve Smith <[log in to unmask]> >Subject: Re: [FSL] aliasing effecting betsurf, is there an easy fix >To: [log in to unmask] > >Hi - I presume you mean that you have wraparound? If the wraparound of >the edges of the brain is not overlapping then I suggest cutting and >reordering chunks of your data with fslroi and fslmerge. Otherwise, if >it is badly overlapping yes you can try BET but this will not be able >to fully clean up your data - you would need customised analysis to >try to clean up the overlap, but it won't be easy.... > >Cheers. > >On 4 Apr 2008, at 07:52, Marcus Slavenas wrote: >> Hi, >> I've been able to get good segmentation of scalp, skull, csf, grey >> matter, and white matter using >> betsurf with a T1/T2 image set in the past. However, some of my >> newer data has some aliasing in >> the T2 image that badly distorts the segmentation. I have some >> ideas on how I might take care of >> this, but I was hoping someone could recommend a quick fix. It >> seems that something like BET (but >> simpler) would do the trick. >> Thanks, >> Marcus >> > > >------------------------------------------------------------ --------------- >Stephen M. Smith, Professor of Biomedical Engineering >Associate Director, Oxford University FMRIB Centre > >FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK >+44 (0) 1865 222726 (fax 222717) >[log in to unmask] http://www.fmrib.ox.ac.uk/~steve >------------------------------------------------------------ ---------------