My first bone scan was at "Second G" hospital in Landstuhl, West Germany.
Boy, that dates it, doesn't it?
It was an injection and I had to force down 2 liters of water in three hours before they had me stand between two plates and "hold very still". The results were printed on a film much like an x-ray.
The second one was at the Des Moines VA hospital.
Again an injection, but sit on a table and put my legs in front of a single plate. The results were recorded on 3/4" video tape.
Today, still with the injections, but now I lay in a CT scanner. The results are recorded digitally and available instantly.
The first one was extremely draining physically and I had a feeling of malaise for a couple days after.