[ITK] reading private tags returns weird strings

[Francois.GIRINON at ensam.eu]

Hi,

I'm trying to read private dicom tags using :

    ImageIOType::Pointer dicomIO = ImageIOType::New();
    ...
    dicomIO->SetLoadPrivateTags(true);
    std::string offsetFromBottomStr;

    std::string offsetFromBottom = "0863|1041";
    dicomIO->GetValueFromTag(offsetFromBottom, offsetFromBottomStr);

The value offsetFromBottomStr returned is AICTQw==
How does it come and how can I fix this ?

Thank you,
François.
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