Does anyone know if 3D/4D ultrasounds are being used now for diagnostic purposes related to diagnosing endometriosis or other problems? I've been looking at the list of treatments and tests and things that my RE does and the prices and they don't have HSG on there but they have 3D/4D ultrasound on there. Apparently they're the only clinic anywhere near this area that uses it and they say they use it for diagnostic purposes and that it's great for viewing tubes more clearly and the endometrium. I also read that they are sometimes used with dye...which sounds like an HSG with an ultrasound rather than an x-ray. At my appointment he said he wanted to look at my tubes ASAP but didn't mention an HSG. He said that at my next appointment on CD5 that I would have an exam and an ultrasound. Any clue if they're using these kinds of ultrasounds more and how much info they can really give if you do have problems? Thanks!