Endoscopic Ultrasound, or EUS, combines ultrasound technology with endoscopy. The procedure is performed by inserting an endoscope with an ultrasound transducer on its tip into the digestive tract, either through the mouth or the rectum. This allows for the close positioning of the transducer at the region of interest offering physicians clearer images. For the patient, both the preparation and the procedure itself are about the same as conventional upper- or lower-GI endoscopy.
Physicians are able to see internal organs without making an incision, allowing them to see beyond the innermost lining of the digestive tract and visualize all five layers as well as surrounding tissue and organs. EUS provides a diagnostic option that is free of radiation.
The high image resolution allows the diagnosis and staging of various lesions located in and around the GI tract. EUS provides more detailed information about tissue characteristics, blood flow dynamics or tumor invasion depths. This allows physicians the best possible treatment to patients, avoiding under- and over-staging.
EUS also offers the option to collect tissue samples in a minimally invasive way at areas which can under normal conditions only be reached via invasive surgery. Endoscopic Ultrasound (EUS) guided Fine Needle Aspiration (FNA) is already proven to be a valuable tool to collect tissue samples for pathologist or cyto-pathologist to examine.
EUS can by used to:
- Diagnose and stage gastrointestinal, esophageal, gastric, rectal and pancreatic cancers
- Evaluate patients with Barrett’s esophagus with high-grade dysplasia
- Detect common bile duct stones (EUS is less invasive than conventional ERCP)
- Diagnose diseases of the internal organs
- Collect fluid samples from the abdominal cavity
Conditions Diagnosed with Endoscopic Ultrasound
- Ampullary carcinoma
- Anal sphincter and incontinence
- Barrett's esophagus with high-grade dysplasia
- Common bile duct stones
- Gastric cancer and MALT lymphoma
- Enlarged lymph nodes
- Esophageal cancer
- Lung cancer
- Neuroendocrine tumors
- Pancreatic cancer
- Cystic neoplasms of the pancreas
- Rectal cancer
- Rectal fistulas
- Smooth muscle tumors
Download the flier on EUS Services for additional information.
For more information on Endoscopic Ultrasound Imaging or for a physician referral, call (305) 285-2929.