Endoscopic ultrasonography (EUS) allows your doctor to examine within, and beyond, the walls of your gastrointestinal tract, including abdominal structures such as the pancreas and biliary system (gall bladder and bile ducts). It is performed with a thin, flexible tube called an endoscope that has a built-in ultrasound probe. The endoscope will be passed through your mouth to the area to be examined. The reflection of sound waves is used to create high-definition visual images of the digestive tract and abdominal structures. It offers the opportunity to perform therapies or obtain biopsies under ultrasound guidance, rather than having them performed through the skin or with open surgery.
How should I prepare for Endoscopic Ultrasound?
For EUS you should have nothing to eat or drink, not even water, usually six hours before the examination. Your doctor will tell you when to start this fasting.
Information for Referring Doctors
Clinical practice guidelines for Endoscopic Ultrasound.
(If you are a patient having a procedure with us, you will be sent instructions personalised to you. Refer to these instructions for your specific case.)