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Endoscopic Ultrasound (EUS)

Most people are familiar with a regular ultrasound test where you lie on a table, someone smears a lubricant on the area being imaged, generally your abdomen, and then runs a probe over the area to show images on a screen. EUS uses the same concept, but allows it to be done from inside your abdomen.

EUS uses a small ultrasound probe attached to a thin, flexible, lighted tube inserted down the throat. The tube has a tiny camera at the end and a tiny transducer that sends sound waves to create detailed images of your digestive tract, including the liver, pancreas, gall bladder and stomach to a screen for review by the doctor. EUS is used to identify sources of gastrointestinal distress and determine the stage of a gastrointestinal cancer.

The EUS procedure also allows for a number of therapeutic techniques to be performed, including the removal of tissue for further examination or lab testing, the injection of medication directly into an affected area, a fine needle to be used to extract tissue for biopsy, even the insertion of stents into cysts or ducts. 

Dr. Saad Haque of Calvert Gastroenterology is specially trained to perform EUS and your procedure will be performed in the Calvert Endoscopy Center for your convenience.

Preparing for Your Procedure

With any endoscopic procedure, having a clear field of vision is important to a successful outcome. That means having nothing in your upper digestive tract, from your stomach down to your small intestine. You will have to stop eating and drinking the night before your procedure. Some procedures may require the use of a laxative to empty the bowels as well. 

If you are taking over the counter or prescription medications, you may need to stop them or delay them for some period of time prior to your procedure. Dr. Haque will review your medication list and walk you through the preparation requirements in advance of your procedure.

Because you will be placed under sedation for the procedure, you will remain under observation for at least an hour after the procedure, and you will not be allowed to drive yourself home. The procedure itself only takes 20 minutes or so, and the doctor will review the immediate results with you as soon as you wake up. Once home, you will be groggy but will be able to eat that day and resume normal activities the next day.