Sonographers, like other medical professionals don't have to have a great bedside manner to get their degree. (unfortunately)
Many general US practices are very busy and getting good images and correct information is often more important than their communication skills. Again, this is unfortunate but i guess the most important thing is that they are good at the scanning and don't miss anything. It would be nice if they all had a delightful bedside manner, but as you've seen, they don't.

My advice to you would be to go to a private sonography practice like 'melbourne ultrasound for women' Where they are all about babies, proving a service with pictures and a dvd. It will cost you, but you will get the scan you are after.
Falguni
yes I did have experienced "Melbourne ultrasound for women" for my 12th week ultrasound and that one was the best.I don't remember how many time we saw the DVD and what a sweet heart was the doctor She explained each and every thing .
This time I got referral from hospital that is why I have chosen sandy ultrasound.Iam really considering going back to Melbourne ultrasound but for sure sending a complaint letter today them may be this save other mums.