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Endoscopic ultrasound: diagnostic and therapeutic applications

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Endoscopic ultrasound (EUS) comprises several techniques of performing high-frequency ultrasound via an endoscope placed in the gastrointestinal tract (oesophagus, stomach, duodenum and pancreaticobiliary tree and rectum). It has rapidly become an important tool in the investigation of a variety of lumenal disorders as well as locoregional staging of gastrointestinal malignancies. Needle biopsy of peri-intestinal structures, such as lymph nodes and pancreatic masses, can also be performed under real-time ultrasound control. To date, the utilization of this technology in Australia has been limited by cost constraints and a paucity of training opportunities.

EUS continues to be a rapidly growing area in clinical gastroenterology. Recent studies continue to define its role, particularly in the loco-regional staging of a variety of malignancies. In addition, new instruments permit tissue sampling and a variety of therapeutic manoeuvres under direct ultrasound guidance. (Intern Med J 2003; 33; 26−32)

Keywords: cancer staging; endoscopic ultrasound; fine-needle aspiration biopsy

Document Type: Research Article


Affiliations: Department of Gastroenterology and Liver Disease, Concord Repatriation General Hospital, Sydney, Australia

Publication date: January 1, 2003

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