Applications of Endoscopic Ultrasonography

, and , Harbor-UCLA Medical Center, Torrance, California.

In This Article


EUS provides detailed images of the gastrointestinal wall and surrounding structures, with a resolution better than most imaging modalities. EUS has been most useful in evaluating submucosal lesions, staging of cancer, and in diagnosing pancreas and biliary diseases. Table 4 presents the clinical settings (diseases), as established at our institution, in which EUS will most likely make a difference in patient management. This technique has been shown to change the approach to clinical management in over two thirds of patients.[1,2] In over half of patients, the change is to a less costly, risky, or invasive strategy.

EUS is increasingly available at university-based gastroenterology centers in the United States. It is expected that it will also be available at community hospitals at an increasing rate as more gastroenterologists are trained in this procedure.

Thus, EUS has developed into an important tool for the management of patients with benign and malignant lesions within and adjacent to the GI tract.