So what really is an RDMS sonographer?

An RDMS sonographer stands for a Registered Diagnostic Medical Sonographer.
An RDMS sonographer needs to have gone through rigorous schooling to learn how to do a sonogram. First one needs to get an Associates or Bachelors degree with a lot of medical prerequisites. Then one goes through a one and a half year accredited program. One learns every abnormality that can be seen under ultrasound and what normal looks like.
After school, one gets the title of a sonographer (certified)
One then needs to take board exams to become registered. A registered sonographer needs to pay a yearly fee and do CME credits (continuing medical education credits)

When we say we only have RDMS sonographers doing your sonogram, you can now have a better understanding of what it entails to be one.

Is it neccessary to have an RDMS sonographer to do your 3D ultrasound?
I would think so. There are places that have "licenced sonographers"
those people go to a 1-2 day course and learn how to do 3D sonogram. They are then given that title.
If there was something potentially wrong with your baby, wouldn't you want your OB/GYN notified right away. Wouldn't you like clear face shots by someone who has been through rigorous school and work doing ultrasounds all day long?
Wouldn't you want someone to safely do your baby's sonogram?
I would.
For public information United Imaging ultrasounds (claimed to have 90 franchise locations) do not require their "sonographers" to be certified, only licenced by their 1-2 day shebang crash course.

Little Bo Peep inc. only hires RDMS sonographers. We're proud of this!!!!