Hi - yes, if you want the non-normalised volume then you can just divide
the relevant number (e.g. "BRAIN" or "GREY") by the VSCALING factor (which
is already volumetric - you don't need a power of 3).
Thanks, Steve.
On Mon, 4 Aug 2003, Jan Fenker wrote:
> i have a question about the scaling factor which is used bei the sienax
> tool. if i want to calculte the non-normalized volume of grey matter can i
> divide the normalized volume by the scaling factor or by the scaling-
> factor^3 ? or is it not possible to simple convert the volumes ?
>
> thanks
>
> jan
>
Stephen M. Smith MA DPhil CEng MIEE
Associate Director, FMRIB and Analysis Research Coordinator
Oxford University Centre for Functional MRI of the Brain
John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
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