title: Usefulness of ultraslim endoscopy with flexible spectral imaging color enhancement for detection of gastric neoplasm: a preliminary study.
abstract: OBJECTIVE
  Transnasal endoscopy with ultraslim endoscope has rapidly spread in Japan. Ultraslim endoscopy provides less resolution than that of conventional endoscopy and may lead to missed screening of early gastric carcinoma. We evaluated the efficacy of ultraslim endoscopy with flexible spectral imaging color enhancement (FICE) for the diagnosis of early gastric carcinoma.
  
  
  METHODS
  This study included 20 consecutive patients in whom 22 gastric neoplasms were resected by endoscopic submucosal dissection (ESD) between April 2011 and January 2012 in Yamaguchi University Hospital. Prior to ESD, marking dots were made during observation with ultraslim endoscopy with FICE. We evaluated en bloc resection rate and tumor visibility with the FICE system.
  
  
  RESULTS
  All tumors were resected with sufficient lateral margin. Only one case had tumor cells in the vertical margin. En bloc resection rate was 95.5 % (21/22 lesions). Ultraslim endoscopy with FICE more clearly visualized tumor margin than did conventional endoscopy. Especially, the effect was remarkable in discolored lesions (100.0 %, 3/3 lesions).
  
  
  CONCLUSIONS
  Ultraslim endoscopy with FICE improved visibility of gastric neoplasms.
authors: Department of Gastroenterology & Hepatology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan.
authors: Munetaka
authors: M
authors: Nakamura
authors: Jun
authors: J
authors: Nishikawa
authors: Atsushi
authors: A
authors: Goto
authors: Junichi
authors: J
authors: Nishimura
authors: Shinichi
authors: S
authors: Hashimoto
authors: Takeshi
authors: T
authors: Okamoto
authors: Isao
authors: I
authors: Sakaida
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003936:Diagnosis, Computer-Assisted / Q000379:methods*; D016145:Endoscopy, Digestive System / Q000379:methods / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D007089:Image Enhancement; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011379:Prognosis; D013274:Stomach Neoplasms / Q000175:diagnosis*
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