Two days before the invasion, on December 18, Panama announced that the U.S. was planning an invasion of Panama. Invasion. The U.S. Army, U.S. Air Force, U.S. Navy, and U.S. Marines participated in Operation Just Cause.
Ultrasound is used during pregnancy to find out whether the growing fetus inside your uterus is developing normally. It can be used to check the anatomy of the fetus for defects or problems. It also can be used to find out the following information: Age of the fetus.
Test Overview. An abdominal ultrasound uses reflected sound waves to produce a picture of the organs and other structures in the upper abdomen. Sometimes a specialized ultrasound is ordered for a detailed evaluation of a specific organ, such as a kidney ultrasound. An abdominal ultrasound can evaluate the: Abdominal aorta, which is the large blood vessel (artery) that passes down the back of the chest and abdomen.