>
> From: Russ Poldrack <[log in to unmask]>
> Dear Gareth (et al.),
> I have been planning to write documentation for the existing code but have
> not yet gotten around to it (isn't that always the case?). I will be away
> for much of november but hope to work on the documentation during that time.
>
Thanks for the quick response!
Thanks for the overview of each routine which should be enough to get
started with. (I'm sure everyone who reads this list knows about the
problem of getting round to documentation :-( )
>
> the things that I see as the biggest needs at this point are:
> 1 - tensor calculation with user-specified gradient directions
Agreed - but very difficult to really generalise!
> 2 - eddy current corrections
Again, would be nice. The easiest approach might be to use
SPMs various warping options to match everything to b=0?
> 3 - a generalized conversion program for both siemens and GE data
I'ld put this fairly low in priority as I suspect most people who are
doing things with SPM already have conversion routines from their
manufacturers format(s) to SPM. It would be useful to define the *data
order*, though, much as SPM for fMRI defines one analyze 'volume' per
time point (as opposed to putting a single slice but a complete time
series in a file, say).
For compatibility with the rest of SPM I'ld be tempted to define a
format where each 3D volume was kept in a separate analyze file, and
the order (or names?) of files defined the b values, averages, etc.
This would allow all the standard SPM tools to be used on, say, the b=0
images.
Not got any time to really look at this right now, I'm afraid (usual
story) - any one else out there got any time and/or suggestions?
_________________
Gareth J. Barker, Institute of Neurology, Queen Square,
London WC1N 3BG, UK.
email : [log in to unmask]
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phone : +44 20 7837 3611 Xn 4269
fax : +44 20 7278 5616
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