Match ID and Names attributes from RS and RD DICOM files

From an RD DICOM (DOSE) file we are capable to extract DVH data. From an RS DICOM (STRUCTURE) file we can see ID and Name attributes of structures. We note that RD IDs do not correspond to RS IDs and RD has no Name's attribute.

How can we match one DVH to strutures ID/Names?

We want to compare TPS DVH to DVH extracted by us using MatLab.

Thanks