std::cerr << std::hex << dictEntry->GetGroup() << "," << dictEntry->GetElement() << std::endl;
// std::string matrix = f2->GetHeader()->GetEntryByNumber(0x0018, 0x1310);
std::cerr << std::hex << dictEntry->GetGroup() << "," << dictEntry->GetElement() << std::endl;
// std::string matrix = f2->GetHeader()->GetEntryByNumber(0x0018, 0x1310);