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The documentation for the basic DICOM format is already hundreds of pages 
long, and individual manufacturers have their own extensions. SPM can only 
convert some forms of DICOM.  There are many others that it struggles with, 
and it is often impossible to find the necessary documentation that explains 
these varieties of the format.  For example, figuring out the extra 
information for the "mosaic" data that Siemens generates was done by looking 
through parts of the files byte-by-byte, and trying to work out what on earth 
they had done.  If there are no issues of subject confidentiality (DICOM 
files have subject names, DOB etc in their headers), then you could send me 
one of the files so I could take a look to see if there is a quick solution.  
Alternatively, you could try some of the tools at:

http://idoimaging.com/cgi-sys/cgiwrap/acrabb/imaging/search.pl?search=DICOM+and+NIfTI

Best regards,
-John


On Tuesday 29 July 2008 11:31, Ana Lopez wrote:
> Hello,
>
> I'm new using spm and I've tried to convert Dicom to nifti with spm05(with
> last updates on the web), windows vista and matlab 7.0.1 but it's failed.
> Error is:
>
> --------------------------
> Running "DICOM Import"
>    Changing directory to: C:\Users\user\Documents\nifti\
> ??? One or more output arguments not assigned during call to
> 'C:\Users\user\Documents\spm5\spm5\spm_dicom_headers.m (decode_csa1)'.
>
> Error in ==> spm_dicom_headers>decode_csa at 423
>     t = decode_csa1(fp,lim);
>
> Error in ==> spm_dicom_headers>read_dicom at 96
>                 dat  = decode_csa(fp,tag.length);
>
> Error in ==> spm_dicom_headers>read_sq at 221
>         [Item,len1] = read_dicom(fp, flg, dict, tag.length);
>
> Error in ==> spm_dicom_headers>read_dicom at 173
>                         [dat,len1] = read_sq(fp, flg,dict,tag.length);
>
> Error in ==> spm_dicom_headers>readdicomfile at 66
> ret = read_dicom(fp, 'il',dict);
>
> Error in ==> spm_dicom_headers at 25
>     tmp = readdicomfile(P(i,:),dict);
>
> Error in ==> spm_config_dicom>convert_dicom at 129
> hdr = spm_dicom_headers(strvcat(job.data));
>
> Error in ==> spm_jobman>run_struct1 at 1587
>         feval(prog,val);
>
> Error in ==> spm_jobman>run_struct1 at 1597
>             run_struct1(c.val{i},gui);
>
> Error in ==> spm_jobman>run_struct1 at 1597
>             run_struct1(c.val{i},gui);
>
> Error in ==> spm_jobman>run_job at 482
>     run_struct1(c,gui);
>
> Error in ==> spm_jobman>serial at 2176
> run_job(jobs);
>
> Error in ==> spm_jobman at 80
>                 serial(varargin{2:nargin});
>
> ??? Error while evaluating uicontrol Callback.
>
> I don't what to do, because I'm learning how to use spm to do my final
> project on the university.
>
> Thank you for your help,
> Ana Lopez