title: Preoperative staging of gastrointestinal tumors by endosonography.
abstract: Intracavitary application of ultrasound was first performed for diagnostic purposes in 1967; since that time, it has been more and more widely used. As far as the gastrointestinal tract is concerned, endoscopically controlled ultrasonic probes provide visualization of the various layers of the intestinal wall. It is therefore possible to describe lesions of the esophagus, stomach, and the rectum with regard to their nature and depth of infiltration. Furthermore, periesophageal and perigastric organs can be visualized. It has become evident that endosonography is particularly important for pretherapeutic staging of tumors of the esophagus, stomach, and rectum. Here prospective comparative studies confirm the superiority of this new diagnostic procedure when compared to the methods available to date.
authors: Abteilung für Innere Medizin mit Schwerpunkt Gastroenterologie, Klinikum Steglitz der Freien Universität, Berlin, Federal Republic of Germany.
authors: K
authors: K
authors: Ziegler
authors: C
authors: C
authors: Sanft
authors: M
authors: M
authors: Zeitz
authors: E O
authors: EO
authors: Riecken
mesh_terms: D016099:Endoscopy, Gastrointestinal; D005770:Gastrointestinal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D006801:Humans; D009367:Neoplasm Staging / Q000379:methods*; D011300:Preoperative Care / Q000379:methods*; D014463:Ultrasonography