How the test works
A prenatal ultrasound test uses high-frequency sound waves transmitted through your abdomen via a device called a transducer to view the inside of your uterus.
The soundwaves are recorded and transformed into video or photographic images of your baby. Your baby's heartbeat and movement of its body, arms and legs can be viewed on the ultrasound.
Most prenatal ultrasound procedures pass the transducer across your abdomen, using a gel as a conductive medium to improve the image’s quality. A transvaginal ultrasound is an alternative procedure performed using a tubular probe inserted into the vagina.
Ultrasound is performed by a doctor or sonographer in your doctor’s office. (Integrated Genetics does not perform ultrasound.) Ultrasound is a valuable tool and is performed prior to and during a diagnostic procedure like amniocentesis or chorionic villus sampling. In addition, ultrasound will sometimes identify concerns that might lead your health care provider to offer you a diagnostic test to further investigate the cause of the concern.