Endoscopic Ultrasound (EUS) is used to evaluate known abnormalities, including lumps or lesions, detected at a prior endoscopy or other test. The procedure is outpatient and can take up to one hour. Recovery time is typically 30 minutes.
EUS provides a detailed image of a lump or lesion, which can help your gastroenterologist determine origin and make treatment recommendations. EUS is also used to diagnose cancer or other diseases of the pancreas, bile duct and gallbladder.
What to Expect
Most often you will receive sedatives intravenously prior to the EUS procedure. Laying on your left side, the provider will pass the ultrasound endoscope through your mouth, esophagus and stomach into the duodenum. The instrument does not interfere with your ability to breathe. Most patients consider it only slightly uncomfortable, and many fall asleep during it.
In preparation for your EUS procedure:
- Arrange for a ride home, as EUS involves sedation and you should not drive for the remainder of the day.
- Do not eat or drink for 6 hours prior.
View complete EUS prep instructions.