Ultrasonic imaging of the abdomen. Report of the ultrasonography task force. Council on Scientific Affairs, American Medical Association. As new imaging modalities emerge and existing technologies improve, indications for a particular imaging method may change. This article examines current indications for abdominal and prostatic ultrasound examination and, where possible, compares ultrasound with other imaging techniques. This is not an attempt to list all possible ultrasound indications or examinations, but rather an attempt to serve as an aid to informed imaging selection based on current literature and equipment. 