[Insight-users] GDCMImageIO vs. DicomImageIO when reading HeaderEntry 6000|3000

[Robert Haase]

Hi again,

the hint was good, but it didn't work. But that's because my first analysis of the problem was wrong: The data-item 6000|3000 which I would like to read has beginning zero-bytes  ('\0') which terminate the string. So the DicomIO thinks that field is empty. Any idea how to bypass that? Is it possible to read binary-data out of an MetaDataDictionaryItem?

Thanks,
Robert


I believe this is due to a 'feature' in itk::GDCMImageIO, see documentation:

 *           -  Some very long (>0xfff) binary fields are not loaded
(typically 0029|0010),
 *              you need to explicitely set the maximum length of
elements to load to be bigger
 *              (see Get/SetMaxSizeLoadEntry)

Let us know if this fixes your issue.

Thanks,

On Fri, Aug 7, 2009 at 11:03 AM, Robert Haase<robert_haase at gmx.de> wrote:
> > Dear ITK Users,
> >
> > I'm trying to read out DICOM-Header-Entries to draw Overlay-Objects above
> > CT Images. When I use GDCMImageIO the MetaDataDictionary does not contain
> > entry 6000|3000 (Overlay Data). When I use DicomImageIO the
> > MetaDataDictionary contains my entry of interest but it displays an ugly
> > error message telling me, I should use GDCMImageIO.
> >
> > Is there a possibility to read out 6000|3000 using GDCMImageIO? Or is
> > there another way to get the Overlay data?
> >
> > Thanks a lot in advance,
> > Robert
> >
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-- Mathieu http://mathieumalaterre.com 
-- 
GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT!
Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01