Interesting, thanks! I still have no idea how to tell where the placenta is 
When I read through a huge thread somewhere about the Ramzi theory, I thought it mentioned something about how it really didn't matter if the u/s was abdominal or transvaginal but you had to make sure you knew if the pic was reversed or not. I don't remember all the correct terms, it confused me. I have no idea if it was reversed though. My midwife did that one, not a tech.