While 2D prenatal ultrasound scanning has been used for decades, recent advances in ultrasound imaging have led to the development of 3D/4D ultrasound technology. Used in conjunction with conventional 2D scanning, a 3D/4D ultrasound can provide expectant parents with an extraordinary first look at their baby’s first movements in the womb. And while this technology generates a whole new level of excitement, it also generates some questions.
What is 3D/4D Ultrasound?
A 3D/4D ultrasound is similar to a traditional 2D ultrasound scan in that it uses the same ultrasonic sound waves to produce an image of your baby. With 2D ultrasound, the sound waves are rendered to produce a “sliced” view, which most people are familiar with. You can generally see the outline of the baby’s head and hands, which is a miracle in itself, but you still can’t see your baby with any great detail.
With 3D/4D technology, however, the sound waves are rendered by the software in such a way that you can see your unborn baby with remarkable clarity. Parents have been able to see their child’s cheeks, chubby little fingers, lips, arms, and ten adorable toes. Even better, the 4D element reflects any movement in the womb…from a yawn to a stretch to a smile.
Is it safe for me and my baby?
3D/4D ultrasound uses the same, safe ultrasonic waves as a 2D scan performed in your doctor’s office. Multiple studies have shown that when used properly, there is absolutely no reason to infer that 3D/4D ultrasound is any more or less intrusive to a fetus than 2D imaging. It simply processes the sound waves differently so that you can see your baby in an entirely new way.
That said, it is important that you use a reputable 3D/4D ultrasound imaging center when seeking this technology. Look for someone with experience, someone who adheres to a strict set of guidelines for ultrasound safety, and someone who you feel comfortable with. Make sure they adhere to FDA-established guidelines for ultrasound imaging and ask if they are certified by, or members of, an ultrasound network or association.
What can I expect?
3D/4D ultrasound can certainly provide you with an amazing look at your unborn baby as it lives and breathes in the comfort of your womb, but know that your view will often be determined by your baby’s cooperation. If your baby is turned or has his or hands in front of the face, it may take some time to get that perfect view.
You will find that your 3D/4D ultrasound experience will mirror that of your traditional 2D scans. However, when you compare the typical 2D sliced imagery with the full movement provided by 3D/4D imaging, you will find that there are far more ooh’s and aah’s with the latter. Your ultrasound provider will be able to prepare you best for your ultrasound so be sure to ask any questions when setting up your appointment.
How far along should I be?
3D/4D ultrasound by a reputable facility will only be performed on pregnant women who are under the care of a physician and have already undergone a diagnostic ultrasound. This is usually completed by the 20th week. At this point, 3D/4D ultrasound imaging is viable.
The early stages, 20th to 27th week of pregnancy, is the optimal time for visualizing fetal movement and capturing full body images of your baby in the womb. From about the 28th week on, as the baby continues to grow and develop fat deposits, you can capture extraordinary images of your baby’s facial features.
If you are planning on only one 3D/4D Ultrasound examination, the recommendation would be to have the exam performed between the 26th and 34th week of the pregnancy. Many mothers obtain more than one 3D/4D ultrasound and have images to enjoy from their second and third trimesters, giving them opportunity to chart their baby’s development.
If you need to locate a reputable 3D/4D imaging center, ask friends and family members if they can recommend a facility.