Endoscopic Ultrasound (EUS)
EUS is a minimally invasive procedure to assess the esophageal and stomach linings as well as the walls of the upper and lower digestive tract. A special endoscope uses high-frequency sound waves to produce detailed images. It may also be used to study other organs near the digestive tract, including the lungs, liver, gall bladder, and pancreas. After the patient receives sedatives, the doctor passes the ultrasound endoscope through the mouth, esophagus, and stomach into the upper part of the small intestine. The instrument does not interfere with your ability to breathe. The actual examination generally takes less than 60 minutes.