4D Ultrasound Information
What is 4D ultrasound?
"4D" is shorthand for "four-dimensional"- the fourth dimension being time. As far as ultrasound is concerned,
4D Ultrasound is the latest ultrasound technology. 4D Ultrasound takes multiple 2-dimensional ultrasound images,
creates a 3-dimensional image and adds the element of time to the process. The result: live action images of your unborn
child or of any internal anatomy.
What are the advantages of the 4D technology?
In contrast to other 3D imaging diagnostic processes, 4D enables visualisation of internal anatomy moving in real-time.
This is frequently used to look at the surface of the face or other fetal structures ("surface rendering") which is surrounded
by amniotic fluid to give a life like image. This can make the image easier to understand. It is sometimes used to view fetal
abnormalities, such as cleft lip, so that parents can recognise what the doctor is describing.
Are there any risks associated with 4D scanning
No. 3D and 4D Ultrasound both utilise sound waves to look inside the body, just the same way as ordinary 2 dimensional ultrasound.
Why do the 4D Ultrasound images have a golden hue?
Physicians have the option of selecting different tints in reviewing images. The golden hue is aesthetically pleasing to
the eye and shows excellent shadows and highlights.
Can I always get a good image of my baby's face?
Often a good image can be obtained, but not always. To get an ideal surface rendered image, the surface must only have
fluid around it. Sometimes the baby may put an arm in front of the face or may have part of the face resting against the wall
of the uterus. At around 26 weeks, the chance of getting a better image is increased. At this stage the baby has developed some
tissue between the skin and the bones of the face, as well as still having a reasonable volume of amniotic fluid around the baby.