Having an ultrasound scan during pregnancy is a part of prenatal care to check the growth and normal development of the baby inside the womb. These scans can detect any developmental abnormality in the baby so that necessary actions can be performed. Apart from diagnosis, ultrasound scans are also used the see the baby before its official arrival. 4D ultrasound scan shows a clear video of the baby moving inside the uterus which can be made into a DVD.
What is 4D Ultrasound Scan?
A 4D ultrasound scan is the moving 3D images of the baby inside the uterus, having time as the fourth dimension. It clearly shows the movements and the facial features of the baby in real time like a video.
How is 4D scan different from 2D & 3D?
The difference between 2D, 3D and 4D scan lies mostly in the computer software advancement rather than the scanning mechanism. The 2D scan can show the baby’s internal organ while the 3D and 4D scan shows only the external features. The 2D scan has grey blurry lines that show the baby’s movement while 3D scan shows clear images of the baby like a photo. The 4D scan on the other hand shows clear movements of the baby where one can see the facial expressions, body movements, shape of the nose, mouth, eyes etc.
When is the right time to have a 4D scan?
It is advisable to wait for 28 to 32 weeks in order to have a clear 4D scan result. However, it is important to consult your doctor about the scan, its advantages and disadvantages before making a decision.