Hello,
> I have two sets of EPI data from the Siemens 3T machine, one with the
> online motion conrraction and another without. Is there anyone could
> tell me which one is better for the analysis in SPM5?
Actually, you may be the one as you now have the means to compare them
:) But seriously, there are argument in favor and against online motion
correction. What I did not like about it when I last looked was that it
uses the x-2 frame to correct x, that it may not be as accurate as an
offline procedure, and that the parameters are not routinely written out
so it is a bit of a black box. This last bit can be mended as far as I
remember, and the rest is up for grabs. I also wouldn't be surprised to
find papers on that (sponsored by Siemens? :) So why don't you try both
and check?
Best,
Marko
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Marko Wilke (Dr.med./M.D.)
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Universitäts-Kinderklinik University Children's Hospital
Abt. III (Neuropädiatrie) Dept. III (Pediatric neurology)
Hoppe-Seyler-Str. 1, D - 72076 Tübingen
Tel.: (+49) 07071 29-83416 Fax: (+49) 07071 29-5473
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