Whereas a 3D ultrasound involves taking thousands of “slices” in a rapidly occurring series called a “volume of echoes”.
Sound waves are sent to the baby and reflected straight back which means there is a rather flat, surface appearance to the baby. How are 2D and 3D ultrasounds different?Ī 2D ultrasound takes image “slices” which can only be viewed by looking at one image at a time. This is why a 3D ultrasound is more expensive and generally not included in standard obstetric practice. With 3D ultrasounds, both the transducer used to transmit the sound waves and the computer software are more advanced and complex. This is particularly clear when looking at the baby’s face and delicate features.
3D ULTRASOUND PICTURES AT 24 WEEKS PREGNANT SKIN
Whereas, with a 3D and 4D ultrasound the baby’s skin can be seen so there is more of a realistic shape and form to the images. This is because a 2D ultrasound sees through the baby to its internal organs and tissues. There is a depth and shape to a 3D image, giving a clarity which is not as evident in a 2D ultrasound.
These “still” pictures of your baby mean that you can see your baby in three dimensions, rather than two. These are then translated by computer into 3 dimensional images which are almost as clear as a real life photograph. However, although the procedures are much the same, they use very different levels of technology to provide very different images.Ī 3D ultrasound takes thousand of pictures or photos of the baby at the once time. Having a 3D ultrasound is not such a different process to having a 2D ultrasound, at least for the mother.
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