const std::string GDCM_NOTLOADED = "GDCM::NotLoaded";
const std::string GDCM_UNREAD = "GDCM::UnRead";
const std::string GDCM_NOTASCII = "GDCM::NotAscii";
const std::string GDCM_NOTLOADED = "GDCM::NotLoaded";
const std::string GDCM_UNREAD = "GDCM::UnRead";
const std::string GDCM_NOTASCII = "GDCM::NotAscii";