The Gastroenterology Group of Northern New Jersey

Endoscopic Ultrasound (EUS)

Here at The Gastroenterology Group of Northern New Jersey we do all that we can in order to ensure treatment for gastrointestinal diseases of all types. Sometimes, in order to identify or specify issues involving your gastrointestinal health, an endoscopic ultrasound is required beforehand. This procedure is a minimally invasive outpatient procedure that can provide our specialists with a detailed examination of the lining of both your upper and your lower gastrointestinal tract. Additionally, this procedure may be necessary when it comes to diagnosing certain conditions relating to adjacent organs such as the pancreas, gallbladder, liver and the lungs.

An endoscopic ultrasound, otherwise referred to as an EUS, is generally performed while you are sedated or under the influence of sedation drugs in order to ensure complete comfort and ease. An endoscope is used, which is a specialized tube that is flexible, thin and has a built-in ultrasound probe attached to it that uses high-frequency sound waves. These waves produce the detailed images that our specialists need to interpret in order to see what is going on with your gastrointestinal health. Once your EUS results are in, we here at The Gastroenterology Group of Northern New Jersey can begin discussing your treatment options with you.

What is EUS?

Endoscopic Ultrasonography is a minimally invasive outpatient procedure that allows for a detailed examination of the lining of your upper and lower gastrointestinal tract. It is also used to study adjacent organs near your gastrointestinal tract such as the pancreas, gallbladder, liver and lungs. If necessary, needle biopsies can be obtained from these adjacent organs via EUS.

EUS is performed under sedation and involves the use of a specialized flexible thin tube called an endoscope that has a built-in ultrasound probe that uses high-frequency sound waves to produce detailed images that is interpreted by your physician. The doctors who perform EUS are gastroenterologists with advanced training in this particular procedure.

Why is EUS done?

EUS is frequently done to obtain more detailed information about abnormalities seen on endoscopy, CT scan, MRI or traditional ultrasound. EUS is also often used to diagnose diseases of the gallbladder, bile duct and pancreas when other tests are inconclusive.

Is EUS helpful for patients diagnosed with cancer?

EUS is a very helpful tool in the staging of certain cancers. EUS accurately determines the depth of cancer as well as any involvement of nearby lymph nodes and blood vessels. It provides pivotal information needed by surgeons and oncologists regarding cancer treatment strategies.

Can biopsies be taken with EUS?

Biopsies can be performed during EUS. These biopsies, also known as, fine needle aspiration (FNA) allows the performing physician to sample tissue from masses or lesions seen during EUS. These samples are then analyzed by an on-site pathologist. FNA is most commonly performed to evaluate masses, cysts or tumors of the pancreas to determine if cancer is present.

How do I prepare for EUS?

You should avoid eating or drinking for approximately 8 hours prior to your scheduled EUS procedure. Your doctor may prescribe a bowel prep for EUS done of the lower GI tract involving the rectum or colon.