Endoscopic Ultrasound (EUS)
As one of the few community hospitals in the nation to provide Endoscopic
Ultrasound (EUS), St. Jude Medical Center is at the forefront of this
rapidly evolving technology.
What is EUS?
Endoscopic Ultrasound (EUS) is a minimally-invasive outpatient procedure
that allows more accurate diagnosis, staging and treatment of gastrointestinal,
pancreatic and pulmonary diseases.
In EUS, an endoscope with a small ultrasound transducer on the tip is inserted
into the upper or lower digestive tract, offering high quality images
of surrounding organs and tissues. Because it provides more detailed information
than other imaging tests, EUS is a valuable tool in diagnosing and treating
diseases of the pancreas, bile duct, esophagus, gallbladder and rectum—particularly
when symptoms are vague or other tests are inconclusive or conflicting.
In addition to the detection of premalignant disorders, EUS allows more
precise staging of cancers without the need for surgery. Fine-needle aspiration
(FNA), a type of biopsy, can be performed using EUS, allowing tissue samples
to be obtained. EUS offers a growing number of therapeutic uses as well,
permitting minimally-invasive treatment of several common conditions.
For more information or to make an appointment, please call (714) 446-7534.
When is EUS useful?
Diagnostic and therapeutic uses for endoscopic ultrasound continue to grow.
EUS is currently used to:
• Evaluate cancer of the colon, esophagus, lung, pancreas, stomach
or rectum, including obtaining tissue samples (through fine needle aspiration)
to allow accurate staging
• Evaluate abnormal findings from imaging tests, such as pancreatic
cysts or lesions
• Diagnose bile duct abnormalities, including gallbladder stones,
bile duct tumors or liver tumors
• Evaluate chronic pancreatitis or unexplained abdominal pain
• Drain pancreatic pseudocysts or other abnormal collections of fluid
in the abdomen
• Evaluate the muscles of the lower rectum and anal canal to determine
causes of fecal incontinence
• Assess submucosal lesions or nodules that appear in the deeper layers
of the gastrointestinal wall
Preparing for EUS
You will be given instructions by your physician or nurse. EUS requires
an empty stomach which typically means no food or drink for six or more
hours. For a rectal EUS, you will probably need to take some enemas or
laxatives. While these are general guidelines, please follow the specific
instructions provided by your doctor.
To learn more, please call (714) 446-7534.
Meet Our Experts
Paul Korc, MD
Phuong Nguyen, MD
Brian Riff, MD