Scan for downsyndrome

Went for 4D scan.. I know that there is a way of testing the baby for downs by the nasal bridge.. if you were to look at these pictures I thought there was not really a dent in the nasal bridge.. obviously I wouldn’t love my baby any less! I would love him just as much I would just like to be prepared with these things..

Any opinions welcome or if anyone has any 4D scans at a similar angle feel free to post!

Thanks