[Insight-users] Dicom Image : How to access to all the tags

[siqi chen]

Yes. You need to download the latest version of GDCM, compile it (same as
you do with ITK), in your cmake, you need to link your code to their
libraries. I believe ITK does not include all libraries of GDCM, at least a
couple of months ago.

I wrote some code before to access patient tag (patient ID, and some very
subtle things) from Dicom image I will try to find it and send it to you.

Siqi

On Tue, Mar 9, 2010 at 6:48 PM, <edoardo.belletti at alice.it> wrote:

>  Sorry but I don't undersand. What can I do for access all the tag
> information?
> I must install GDCM 2.x and than cofigure it for ITK? How can I do this?
>
> Sorry thank you very much
> Edoardo
>
> -----Messaggio originale-----
> Da: insight-users-bounces at itk.org per conto di siqi chen
> Inviato: mar 09/03/2010 18.02
> A: Mathieu Malaterre
> Cc: ITK_forum
> Oggetto: Re: [Insight-users] Dicom Image : How to access to all the tags
>
>
> GDCM can access all the tag information, at least in my case.
>
> http://www.creatis.insa-lyon.fr/software/public/Gdcm/
>
> On Tue, Mar 9, 2010 at 4:58 AM, Mathieu Malaterre <
> mathieu.malaterre at gmail.com> wrote:
>
> > > edoardo.belletti at alice.it wrote:
> > >>
> > >> Hi Insight-users,
> > >> I have a problem: I don't know how can I access to all the tags
> present
> > in
> > >> a dicom image.
> > >> With the code used in the example of the manual
> > >> (Examples/IO/DicomImageReadPrintTags.cxx) not all the tags are printed
> > and
> > >> for accuracy in the output there isn't the tag
> > >> "SequenceOfUltrasoundReagions" that interest me. But I know that in
> the
> > file
> > >> which I run this tag is present.
> > >> How can I access to this tag?
> > >> I hope I was understandable.
> > >> In particular the piece of code is:
> > >
> > On Tue, Mar 9, 2010 at 10:49 AM, Gomez, Alberto <alberto.gomez at kcl.ac.uk
> >
> > wrote:
> > > Hi,
> > >
> > > I have had the same problem but I think that there is no solution. It
> > > depends on the manufacturer of the US acquisition system, and whether
> the
> > > tags are private or not, and the data encrypted.
> >
> > No.
> >
> > The DICOM Attribute the OP refers to is a VR:SQ (a public element). As
> > of now itk::GDCMImageIO does not load VR:SQ DICOM attribute. As
> > described here:
> >
> > http://www.itk.org/Doxygen/html/classitk_1_1GDCMImageIO.html#_details
> >
> > ...
> > Warning:
> >    There are several restrictions to this current writer:
> >
> >        * Eventhough during the writing process you pass in a DICOM
> > file as input The output file may not contains ALL DICOM field from
> > the input file. In particular:
> >              o The SeQuence DICOM field (SQ).
> >              o Fields from Private Dictionary
> >        * 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)
> > ...
> >
> >
> > You have to use the underlying DICOM library (GDCM 1.x or GDCM 2.x) to
> > extract that particular -nested- information.
> >
> > HTH
> > --
> > Mathieu
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