The cleanup procedure is something that I cobbled together one afternoon and
kind of works in a bit of an ad hoc way. I was therefore reluctant to make
it the default behaviour for DARTEL import (in the hope of replacing it with
a proper MRF type approach). For the data here in the FIL, this option
doesn't make so much difference - but it may make help for data from other
groups. If this is the case for the DRG scans, then I would suggest
uncommenting this line.
All the best,
-John
On Wednesday 08 October 2008 10:53, Rachael Scahilll wrote:
> Dear John
>
> I have imported some images ready to create a template using DARTEL and
> found that some of the segmentations contain a lot of non-brain tissue.
> When performing the initial segmentations to generate the normalisation
> parameters I used the 'thorough clean' option which greatly improved the
> segmentations.
>
> Line 121 in spm5/toolbox/DARTEL/spm_dartel_import.m:
> [dat{1},dat{2},dat{3}] = clean_gwc(dat{1},dat{2},dat{3}, 2);
> appears to be commented out. Just wondered if it was possible to put that
> option back in or is there a good reason why this is not an option when
> generating the rigidly-aligned segmentations for template creation?
>
> Thanks,
>
> Rachael
>
>
>
> Dr Rachael Scahill
> Senior Imaging Research Associate, Track-HD
> Institute of Neurology
> Box 104 Queen Square
> London WC1N 3BG
> UK
> +44 (0)20 7905 2990
