[vtkusers] Reading different series images from a single dicom folder

[ghy]

I used to using ITK to read DICOM series Images in this case. You can know
how much series in the directory and can select a series to read.

Good Luck.
Susan.


Bellow  is a code example:

#include "itkImageSeriesReader.h"
#include "itkDICOMImageIO2.h"
#include "itkDICOMSeriesFileNames.h"
#include "itkImageFileWriter.h"

int main( int argc, char* argv[] )
{

  if( argc < 3 )
    {
    std::cerr << "Usage: " << argv[0] << " DicomDirectory  outputFileName 
[seriesName]" << std::endl;
    return EXIT_FAILURE;
    }

  typedef itk::Image<short,3>                  ImageType;
  typedef itk::ImageSeriesReader< ImageType >  ReaderType;

  itk::DICOMImageIO2::Pointer dicomIO = itk::DICOMImageIO2::New();

  // Get the DICOM filenames from the directory
  itk::DICOMSeriesFileNames::Pointer nameGenerator =
itk::DICOMSeriesFileNames::New();
  nameGenerator->SetDirectory( argv[1] );


  try
    {
    typedef std::vector<std::string> seriesIdContainer;
    const seriesIdContainer & seriesUID = nameGenerator->GetSeriesUIDs();

    seriesIdContainer::const_iterator seriesItr = seriesUID.begin();
    seriesIdContainer::const_iterator seriesEnd = seriesUID.end();
  
    std::cout << std::endl << "The directory: " << std::endl;
    std::cout << std::endl << argv[1] << std::endl << std::endl;
    std::cout << "Contains the following DICOM Series: ";
    std::cout << std::endl << std::endl;

    while( seriesItr != seriesEnd )
      {
      std::cout << seriesItr->c_str() << std::endl;
      seriesItr++;
      }
  
    std::cout << std::endl << std::endl;
    std::cout << "Now reading series: " << std::endl << std::endl;

    typedef std::vector<std::string> fileNamesContainer;
    fileNamesContainer fileNames;

    if( argc < 4 ) // If no optional third argument
      {
      std::cout << seriesUID.begin()->c_str() << std::endl;
      fileNames = nameGenerator->GetFileNames();
      }
    else
      {
      std::cout << argv[3] << std::endl;
      fileNames = nameGenerator->GetFileNames( argv[3] );
      }
    std::cout << std::endl << std::endl;

    ReaderType::Pointer reader = ReaderType::New();
    reader->SetFileNames( fileNames );
    reader->SetImageIO( dicomIO );

    try
      {
      reader->Update();
      }
    catch (itk::ExceptionObject &ex)
      {
      std::cout << ex << std::endl;
      return EXIT_FAILURE;
      }

    typedef itk::ImageFileWriter< ImageType > WriterType;
    WriterType::Pointer writer = WriterType::New();

    std::cout  << "Writing the image as " << std::endl << std::endl;
    std::cout  << argv[2] << std::endl << std::endl;

    writer->SetFileName( argv[2] );
    
    writer->SetInput( reader->GetOutput() );

    try
      {
      writer->Update();
      }
    catch (itk::ExceptionObject &ex)
      {
      std::cout << ex;
      return EXIT_FAILURE;
      }
    }
  catch (itk::ExceptionObject &ex)
    {
    std::cout << ex;
    return EXIT_FAILURE;
    }

  return EXIT_SUCCESS;

}
 



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