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Having a 4D ultrasound scan at our London clinic can be an amazing experience, but you might be wondering how these new scans are able to create 3D pictures of your baby. The scan procedure is actually very similar to the normal 2D scans, but the way the images are processed is a little bit different.

4d scan

How Ultrasound Scans Work

4D scans work in a similar way to the normal ultrasounds you will have as part of your antenatal care in London. Both types of scan use ultrasound waves to create pictures of your baby. Ultrasound is a very high-frequency sound wave. The ultrasound probe sends out these waves and then collects the echoes that bounce back from your womb. The echoes are converted into pictures in a similar way to the echolocation used by bats. However, the pictures created by 4D scans will look different from those you’ll see during a routine ultrasound.

Creating the 3D Image

When you have a 4D scan in London, the ultrasound images will be processed a little differently. Instead of showing you a flat or 2D image, you will see a three dimensional picture of your baby. This 3D image is pieced together from a series of pictures taken by the ultrasound machine. Since the pictures also appear in real time, the scan is known as a 4D ultrasound.

Another key difference between the two types of scans is that you will get a very different view of your baby. The main purpose of the routine scans is to check on your baby’s health, so the images focus on the internal organs. With a 4D ultrasound, it is possible to take pictures of the baby’s face and skin instead. This means that you will see what your baby looks like and what he or she is doing in the womb.

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The contents on this site is for information only, and is not meant to substitute the advice of your own physician or other medical professional.