Wow, I am shocked you haven't had any replies to this. I don't personally know your answer but it is my understanding that it is similar to a diskogram only more involved and very painful. Just in case you don't know, a diskogram is where they will inject dye into your disk space something in the dye or medicine will hurt like crazy and I mean crazy if that disk is a problem. If it isn't, it won't hurt at all. They will do several disks to make sure they have found the right area. A mylogram is much the same only from different angles. [removed] I do know that the pain doesn't last more than a few seconRAB as they will chase it with meRAB to stop the pain instantly. It is a great test to have done. Good luck!
