The sonogram is a picture of baby and placenta developed by the medical assistant using ultrasound waves at high-frequency to scan a woman’s abdomen and pelvic cavity to get information about baby’s development inside the mother’s womb. The ultrasound is the technology used for sonograms, but they are similar in process and technology.

An ultrasound exam is a procedure that uses high-frequency sound waves to scan a woman’s abdomen and pelvic cavity, creating a picture (sonogram) of the baby and placenta. Although the terms ultrasound and sonogram are technically different, they are used interchangeably and reference the same exam.