Some mothers-to-be sometimes find 2D Scans disappointing as they are grey and blurry. This type of scan sees right through your baby, focusing on his or her internal organs.
On the other hand, 3D Ultrasound scans are still pictures of your baby in three dimensions. In this type of scan, you will the shape of your baby and some of his/her features, such as the mouth and nose. 4D scans are moving 3D images of your baby, with time being the fourth dimension
The 4D Ultrasound can be performed between 26 and 30 weeks of pregnancy. This type of scan allows a good view of the baby’s face, with the possibility of going home with some pictures and videos to take home to show the rest of the family
The scan also allows the review of the baby’s organs however at times some of the structures are not easily seen. 4D is dependent on the position your baby is in, either profile or full face, and the amount of fluid in front of the face – the more fluid the better the scan images are.