[Insight-users] how check if dicom exist

[Andinet Enquobahrie]

Hello Poland,

>How check if i have DICOM series in dir?
>
>(...)
>typedef itk::Image< PixelType, Dimension >      ImageType;
>typedef itk::ImageSeriesReader< ImageType >     ReaderType;
>typedef itk::GDCMImageIO                        ImageIOType;
>typedef itk::GDCMSeriesFileNames                NamesGeneratorType;
>ImageIOType::Pointer gdcmIO = ImageIOType::New();
>NamesGeneratorType::Pointer namesGenerator = NamesGeneratorType::New();
>namesGenerator->SetInputDirectory( argv1 );
>const ReaderType::FileNamesContainer & filenames = namesGenerator->GetInputFileNames(); <- in this place program crash -if I provide dir wher is not series.  
>(...)
>
>
>  
>
Before invoking the GetInputFileNames() function, it is a good practice 
to determine whether dicom series exist in your input directory. To do 
that,  first generate the series information by invoking

nameGenerator -> SetUserSeriesDetails( true );

and then get seriesUID info...

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

Then check if the container is empty or not

if ( seriesUID.empty() )
{
    std::cout << "The directory is empty\n" << std::endl;
    return EXIT_FAILURE;
}

By the way,  you will also get a warning message if no series were found.

hope that helps..

-Andinet