How Is a 4D Ultrasound Performed?
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What to Expect
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According to the American College of Obstetrics and Gynecology (ACOG), an ultrasound should be a simple and stress-free experience. Before attending an ultrasound session, a pregnant woman will be advised to wear comfortable, loose clothing. The provider may ask her to drink a lot of water before the session. This will fill the bladder, and move the uterus into a better position for imaging.
During the 4D ultrasound, the woman will expose her abdomen to a device called a transducer. This is a sophisticated imaging device that provides the data which the computer software will translate into a moving image of the baby. The provider or an assistant will cover the abdomen with a light oil or gel, to improve contact between the stomach and the transducer. The provider will then run the transducer over the abdomen to obtain the images.
Caution
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According to the American Institute of Ultrasound in Medicine (AIUM), 4D ultrasounds are generally considered to be safe, however, the technology does expose the mother to radiation. The effects of this exposure on women and fetuses is not known. For this reason, both AIUM and ACOG caution against keepsake ultrasounds, which provide souvenir images of the baby in the womb. In addition, it's important that an ultrasound be performed by a qualified health provider. This professional can review the images with the parents and answer any questions.
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