[Insight-users] Changing a DICOM Header... in a DICOM Series

[Stéphane CALANDE]

Hi itk-list,


I'm using the example of "DicomSeriesReadSeriesWrite", but I'd like to
modify one DICOM header field before writing the Series.

Then I had a look in "DicomImageReadChangeHeaderWrite" and I tried to apply
the part of the code that change the header field into the code of
"DicomSeriesReadSeriesWrite".


But it doesn't seem to work. The field I want to change has not changed in
the output files. Could you have a look in the (simplified) following code
to help me ?



  typedef signed short    PixelType;
  const unsigned int      Dimension = 3;
  typedef itk::Image< PixelType, Dimension >      ImageType;
  typedef itk::ImageSeriesReader< ImageType >     ReaderType;
  typedef itk::ImageFileReader< ImageType >       ReaderMHDType;
  typedef itk::GDCMImageIO                        ImageIOType;
  typedef itk::GDCMSeriesFileNames                NamesGeneratorType;

  ImageIOType::Pointer gdcmIO = ImageIOType::New();
  NamesGeneratorType::Pointer namesGenerator = NamesGeneratorType::New();

  namesGenerator->SetInputDirectory( [...DIRECTORY...] );

  const ReaderType::FileNamesContainer & filenames =
                            namesGenerator->GetInputFileNames();

  ReaderType::Pointer reader = ReaderType::New();

  reader->SetImageIO( gdcmIO );
  reader->SetFileNames( filenames );

  reader->Update();

  *// BEGIN => I'm trying to modify one DICOM Header field <<<*

  typedef itk::MetaDataDictionary   DictionaryType;

  ImageType::Pointer inputImage = reader->GetOutput();
  DictionaryType & dictionary = inputImage->GetMetaDataDictionary();

  std::string entryId("008|103e");
  std::string value("NEW VALUE");

  itk::EncapsulateMetaData<std::string>( dictionary, entryId, value );

   *// END*

    [...]

  typedef signed short    OutputPixelType;
  const unsigned int      OutputDimension = 2;

  typedef itk::Image< OutputPixelType, OutputDimension >    Image2DType;

  typedef itk::ImageSeriesWriter< ImageType, Image2DType >
SeriesWriterType;

  SeriesWriterType::Pointer seriesWriter = SeriesWriterType::New();

  seriesWriter->SetInput( [...VOLUME...] );
  seriesWriter->SetImageIO( gdcmIO );

  namesGenerator->SetOutputDirectory( outputDirectory );

  seriesWriter->SetFileNames( namesGenerator->GetOutputFileNames() );

  seriesWriter->SetMetaDataDictionaryArray(
                        reader->GetMetaDataDictionaryArray() );

  seriesWriter->Update();




I would be very grateful if you could help me.


Thank you very much,



Stéphane
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