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You just need to create a fake image of the appropriate resolution. You
can then do "co-register", "write-only". SPM will ask for an image
defining the space - choose the "fake" image that is at the correct
resolution. The object to be written is the image of interest.

Note the fake image file/header file pair really just needs the header
to be correct - the image can be of anything (the beach, Cartman, or
whatever, the actual image data is not used just the header).

Robert Welsh


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Robert C. Welsh, PhD
Research Investigator
Department of Radiology
University of Michigan
(734) - 764 - 2412 (fax)
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>>> "Brandall Y. Suyenobu" <[log in to unmask]> 02/10/05 4:09 PM >>>
Hi all,

Is there a way to change voxel size other than changing the default in
the
normalization step?  I am reanalyzing PET data in SPM99 for which, in
some
cases, I have only the smoothed, normalized, realigned data.  If
normalization is the only way to change voxel size, would re-normalizing
the already smoothed, normalized, realigned data be a reasonable way to
proceed, using "very light" nonlinear regularization?   Any suggestions
would be very much appreciated.

Thanks,
Brandall




Brandall Y. Suyenobu, Ph.D.
Staff Research Associate

Brain Imaging Core
CNS: Center for Neurovisceral Sciences & Women's Health
CURE: Digestive Diseases Research Center
UCLA Division of Digestive Diseases
Greater Los Angeles Veterans' Administration Healthcare System
Bldg. 115, rm 223
11301 Wilshire Boulevard
Los Angeles, California 90073
Tel: (310) 478-3711 ext. 40580
Fax: (310) 794-2864
http://ibs.med.ucla.edu
http://mindbody.med.ucla.edu




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