What is the EUS procedure for?

An endoscopic ultrasound (EUS) procedure examines the inside of your digestive tract.  It can detect pancreatic cancer, colon cancer, as well as cancer that’s spread to other parts of your body. EUS can also detect inflammatory bowel disease (IBD), pancreatitis and other causes of abdominal pain.

Your gastroenterologist may recommend EUS to:

  • Locate tumours or cysts in the pancreas
  • Help diagnose chronic pancreatitis
  • Assess cancerous areas of the esophagus, stomach, colon or rectum, and help with staging cancers (determining how advanced or aggressive they are); ultrasound helps detect whether the cancer has affected major lymph nodes or blood vessels
  • Detect stones in the biliary ducts
  • Drain pancreatic pseudocysts or other abnormal fluid collections in the abdomen
  • Treat the pancreas and liver with precise medicine delivery

Anesthesia may be used or moderate sedation.  A plastic guard will be placed in your mouth to protect your teeth during the test.  A blood pressure cuff will be put on your arm or leg.

The main difference between the two is that endoscopic ultrasound utilises high-frequency sound waves to generate a virtual image and ERCP procedure utilises X-ray and contrast to generate an image.  These two techniques are commonly used for examining organs like the liver, gall bladder, and pancreas.

Following an endoscopic ultrasound, it’s advisable to rest at home, as you may experience drowsiness. It’s recommended to avoid strenuous activities for a few days. However, you should be able to resume your normal activities within 24 hours after the procedure.

Your symptoms may become worse and the doctor will not be able to give you the correct treatment without knowing the cause of your problems.

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