itMapAttr = mapAttr.find("D0018_0088");
if ( itMapAttr!=mapAttr.end() ) spaceBetweenSliceStr = itMapAttr->second;
// std::string spaceBetweenSliceStr = mapAttr.find("D0018_0088")->second;
itMapAttr = mapAttr.find("D0018_0088");
if ( itMapAttr!=mapAttr.end() ) spaceBetweenSliceStr = itMapAttr->second;
// std::string spaceBetweenSliceStr = mapAttr.find("D0018_0088")->second;