Last time I seriously worked on interoperability between pacs systems in 2014, there were new products being put on the market from major vendors like GE that d

Last time I seriously worked on interoperability between pacs systems in 2014, there were new products being put on the market from major vendors like GE that didn't support Unicode in dicom. And when I worked on radiation therapy systems, we ran into limitations with fixed-length fields being insufficient for the number of points in a region of interest, unless you use an encoding that doesn't indicate types. (4 bytes - either 2 for data type and 2 for length, or 4 for length with no data type listed). It's from the 80s and shows.