> I have a question about an Analyze format and SPM's capability to handle
> it.
>
> Does Analyze allow us to store 'dynamic' images (images at different time
> points) in a single file? Can SPM2 handle this kind of file, especially in
> the co-registration or spatial normalization?
>
> We are having a need to register and warp dynamic PET images using SPM2.
In principle, SPM2 can handle 4D volumes, although you need to set the
defaults.analyze.multivol field to enable this. This is either by editing
spm_defaults.m, or by starting up SPM and typing..
global defaults
defaults.analyze.multivol = true;
SPM2 has a few slight problems in terms of file selection though, but these
should be resolved in spm5b. In SPM5b, when selecting images, you would
change the field that normally says "1", to the range of volume numbers you
want (e.g. "1:30").
Reading the image headers in order to obtain the number of volumes has a bit
of an impact on speed, so you don't by default have the option to select
individual volumes.
Best regards,
-John
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