Hi Martin,
1) yep, absolutely correct, the first is the number of voxels, the
second number is the same multiplied by the voxel volume (i.e. in mm^3)
2) avwstats(++) does not yet support outputting this in mm rather
than voxels - but you only need to multiply by the appropriate x,y,z
voxel dims to get this in mm
hope this helps
Christian
On 8 Feb 2007, at 19:24, Martin M Monti wrote:
> Dear FSL gurus,
>
> I have a couple small questions about avwstats(++)
>
> 1) avwstats -V: the frist number is the voxel count, the second,
> volume, is that the same count but at the T1 resolution?
> 2) avwstats -w: Is it possible to get a mm output rather than a
> voxel output? (kind of like the -c vs -C option with avwstats++)
> Alternatively, is there a tool to go from the former to the latter?
>
> cheers
>
> martin
>
>
>
>
> --------------------------------------------
> "Well! I've often seen a cat without a grin; but a grin without a
> cat! It's the most curious thing I ever say in my life!" [Lewis
> Carroll, Alice in Wonderland]
>
> - “Contrariwise,” continued Tweedledee, “if it was so, it might be;
> - and if it were so, it would be;
> - but as it isn’t, it ain’t.
> - That’s logic.” [Lewis Carroll, Through the Looking-Glass]
>
> --------------------------------------------
> Martin M. Monti, MA
> Princeton University
> Department of Psychology
> Green Hall 3-S-8
> (609) 258-5679
> www.webmartin.net
> --------------------------------------------
--
Christian F. Beckmann
Oxford University Centre for Functional
Magnetic Resonance Imaging of the Brain,
John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
Email: [log in to unmask] - http://www.fmrib.ox.ac.uk/~beckmann/
Phone: +44(0)1865 222551 Fax: +44(0)1865 222717
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