Doctors take abdominal ultrasound images to view the internal organs without making an incision. This allows them find the cause of belly pains, check liver problems, monitor an aneurysm, look for blocked bile ducts and urine flow, and check for inflammation of the gallbladder, according to WebMD.
An abdominal ultrasound uses high-frequency sound waves to capture video and images of portions of the bodys interior. Doctors advise their patients to fast for about 12 hours before the procedure to empty the stomach of the undigested food to avoid blocking the sound waves. Although the patient may feel slight discomfort during the procedure, an abdominal ultrasound uses no radiation and carries no risks, reports Healthline.