title: Possibilities of interventional endoscopic ultrasound.
abstract: Since endoscopic ultrasound (EUS) was developed in the 1990s, EUS has become widely accepted as an imaging tool. EUS is categorized into radial and linear in design. Radial endoscopes provide cross-sectional imaging of the mediastinum, gastrointestinal tract, liver, spleen, kidney, adrenal gland, and pancreas, which has highly accuracy in the T and N staging of esophageal, lung, gastric, rectal, and pancreatic cancer. Tumor staging is common indication of radial-EUS, and EUS-staging is predictive of surgical resectability. In contrast, linear array endoscope uses a side-viewing probe and has advantages in the ability to perform EUS-guides fine needle aspiration (EUS-FNA), which has been established for cytologic diagnosis. For example, EUS-FNA arrows accurate nodal staging of esophageal cancer before surgery, which provides more accurate assessment of nodes than radial-EUS imaging alone. EUS-FNA has been also commonly used for diagnose of pancreatic diseases because of the highly accuracy than US or computed tomography. EUS and EUS-FNA has been used not only for TNM staging and cytologic diagnosis of pancreatic cancer, but also for evaluation of chronic pancreatitis, pancreatic cystic lesions, and other pancreatic masses. More recently, EUS-FNA has developed into EUS-guided fine needle injection including EUS-guided celiac plexus neurolysis, celiac plexus block, and other "interventional EUS" procedures. In this review, we have summarized the new possibilities offered by "interventional EUS".
authors: Makoto Nishimura, Osamu Togawa, Miho Matsukawa, Takashi Shono, Yasutoshi Ochiai, Masamitsu Nakao, Keiko Ishikawa, Shin Arai, Hiroto Kita, Department of Gastroenterology, Saitama Medical University, International Medical Center, 1397-1, Yamane, Hidaka, Saitama 350-1298, Japan.
authors: Makoto
authors: M
authors: Nishimura
authors: Osamu
authors: O
authors: Togawa
authors: Miho
authors: M
authors: Matsukawa
authors: Takashi
authors: T
authors: Shono
authors: Yasutoshi
authors: Y
authors: Ochiai
authors: Masamitsu
authors: M
authors: Nakao
authors: Keiko
authors: K
authors: Ishikawa
authors: Shin
authors: S
authors: Arai
authors: Hiroto
authors: H
authors: Kita