Dear Qilin Lu,
I am afraid, one can not determine slice order by looking at the data.
Also, (at least for SIEMENS mosaic data I know of) there is no easy way
in telling the truth about ascending/descending and interleaved
acquisition order from the DICOM header. You have to write that down
yourself from the MR scanning protocol.
Volkmar
On Mon, 2007-12-10 at 13:34 +0800, Nicolas Lue wrote:
> Dear SPMer:
>
> I want to use "slice timing" for correcting the acquisition time between slices.
>
> But i do not know the exact slice order, what i have is the 3d-dicom file. i converted it to jpg file in this attachment. Can i identify it is an ascending order (first slice=bottom) from that?
>
>
> Thank you very much!
>
> ---------------------------------------------------
> Qilin Lu
> Institute of Neuroinformatics
> Department of Physics
> Dalian University of Technology
> 2 Ling Gong Rd, Dalian 116023, China
--
Volkmar Glauche
Freiburg Brain Imaging
http://fbi.uniklinik-freiburg.de/
Phone +49(0)761 270-5331
Fax +49(0)761 270-5416
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