Camera technology has come a long way in the past 50-60 years. I have had a camera poked into every possible hole in my body. Last one was done last week with a camera stuck down my throat into my lungs along with a Brillo pad to clean my white walls. A few months before that a camera was poked into a small hole where stuff normally comes out. I am awake looking at a computer screen and I hear the nurse say hey look, there is your prostate, it looks good. I would have enjoyed it much more if the nurse would have said hey it looks good before sticking the camera into the hole. I also have what is called a port. It is an implant in my chest with a line that goes directly inside my heart. The port is used for drawing blood samples as opposed to an IV and I had a camera inserted in the port to take pictures of my heart. My point being I have no desire to use a camera to check my valves.