ENDOSCOPIC ULTRASOUND (EUS)
EUS is a specialized endoscopic procedure that takes advantage of a fairly recent advancement in technology that allows ultrasound to be built into the endoscope. By passing a specialized flexible endoscope in the usual fashion into the upper or lower GI tract, the physician can perform a “zoomed-in” ultrasound exam from within the patient that is projected onto the video monitor in the endoscopy room. The patient receives the same sedation as during standard endoscopy or colonoscopy.
EUS allows for the deep layers of the GI tract to be imaged and for organs outside the GI tract lumen to be studied, ie. the Pancreas, Gallbladder, Liver, and nearby lymph nodes. The test can be performed to detect gallstones too small to see on standard imaging tests, such as abdominal ultrasound, CT scan. EUS is often performed to diagnose and stage growths within the pancreas, esophagus, stomach, and rectum. Biopsy can be performed via a technique called Fine Needle Aspiration (FNA). Risks are minimal and the test is often performed to obtain critical information without more invasive testing such as surgery. Often a finding on a radiology study will be performed first and if necessary FNA can be performed during EUS.
To perform EUS, gastroenterologists need to receive specialized training in their fellowship. Dr. Schamberg is the only physician in the Greenwich and Stamford region to perform EUS. Dr. Schamberg performs EUS procedures at both Greenwich Hospital and Stamford Hospital.