[vtkusers] A series of DICOM images loading

[Xiaopeng Yang]

Dear All,

 

I have succeeded in loading a series of DICOM images and visualized them by
VTK. However, I can just see the last DICOM file. What I want is that
through controlling the scroll of the mouse, I can navigate from one slice
to another slice. Does anybody know how to fulfill the goal?

 

Attached please find my code.

 

Thank you.

Xiaopeng

 

  typedef signed short    PixelType;

  const unsigned int      Dimension = 3;

 

  typedef itk::OrientedImage< PixelType, Dimension >         ImageType;

 

  typedef itk::ImageSeriesReader< ImageType >        ReaderType;

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

 

  typedef itk::GDCMImageIO       ImageIOType;

  ImageIOType::Pointer dicomIO = ImageIOType::New();

  

  reader->SetImageIO( dicomIO );

 

  typedef itk::GDCMSeriesFileNames NamesGeneratorType;

  NamesGeneratorType::Pointer nameGenerator = NamesGeneratorType::New();

 

  nameGenerator->SetUseSeriesDetails( true );

  nameGenerator->AddSeriesRestriction("0008|0021" );

 

  nameGenerator->SetDirectory( "F:/Documents and
Settings/Xiaopeng/Desktop/Patient (Pai Sang Pu)/Output/Difussion" );

 

  typedef std::vector< std::string >    SeriesIdContainer;

    

  const SeriesIdContainer & seriesUID = nameGenerator->GetSeriesUIDs();

    

  SeriesIdContainer::const_iterator seriesItr = seriesUID.begin();

  SeriesIdContainer::const_iterator seriesEnd = seriesUID.end();

  while( seriesItr != seriesEnd )

    {

    std::cout << seriesItr->c_str() << std::endl;

    seriesItr++;

    }

  

  std::string seriesIdentifier;

  seriesIdentifier = seriesUID.begin()->c_str();

 

  typedef std::vector< std::string >   FileNamesContainer;

  FileNamesContainer fileNames;

 

  fileNames = nameGenerator->GetFileNames( seriesIdentifier );

 

  reader->SetFileNames( fileNames );

 

  typedef itk::ImageToVTKImageFilter<ImageType>FilterType;

  FilterType::Pointer connector = FilterType::New();

 

  try

    {

    reader->Update();

    }

  catch (itk::ExceptionObject &ex)

    {

    std::cout << ex << std::endl;

    return EXIT_FAILURE;

    }

 

  connector->SetInput(reader->GetOutput());

 

  vtkImageViewer *viewer = vtkImageViewer::New();

  vtkRenderWindowInteractor *renderWindowInteractor =
vtkRenderWindowInteractor::New();

 

  viewer->SetupInteractor(renderWindowInteractor);

  viewer->SetInput(connector->GetOutput());

  viewer->Render();

  viewer->SetColorWindow(255);

  viewer->SetColorLevel(128);

 

  renderWindowInteractor->Start();

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