Usefulness of the DL in ME with NBI for determining the expanded area of early-stage differentiated gastric carcinoma

AIM: To investigate whether magnifying endoscopy with narrow band imaging (ME-NBI) is useful for evaluating the area of superficial, depressed- or flat-type differentiated adenocarcinoma of the stomach. METHODS: This procedure was performed in Saitama Medical University International Medical Center,...

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Published in:World journal of gastrointestinal endoscopy 2012-08, Vol.4 (8), p.362-367
Main Authors: Nonaka, Kouichi, Namoto, Masaaki, Kitada, Hideki, Shimizu, Michio, Ochiai, Yasutoshi, Togawa, Osamu, Nakao, Masamitsu, Nishimura, Makoto, Ishikawa, Keiko, Arai, Shin, Kita, Hiroto
Format: Article
Language:English
Subjects:
band
Brief
carcinoma
dissection
Endoscopic
endoscopy
Gastric
imaging
Magnifying
Narrow
submucosal
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Summary:AIM: To investigate whether magnifying endoscopy with narrow band imaging (ME-NBI) is useful for evaluating the area of superficial, depressed- or flat-type differentiated adenocarcinoma of the stomach. METHODS: This procedure was performed in Saitama Medical University International Medical Center, Japanese Red Cross Kumamoto Hospital and Kitakyushu Municipal Medical Center. The subjects were 31 patients in whom biopsy findings, from superficial, depressed- or flat-type gastric lesion, suggested differentiated adenocarcinoma in the above 3 hospitals between January and December 2009. Biopsy was performed on the lesion and non-lesion sides of a boundary (imaginary boundary) visualized on ME-NBI. The results were pathologically investigated. We evaluated the accuracy of estimating a demarcation line (DL) on ME-NBI in comparison with biopsy findings as a gold standard. RESULTS: The DL that could be recognized at 2 points on the orifice and anal sides of each lesion during ME-NBI was consistent with the pathological findings in 22 patients with 0-Ⅱc lesions, 7 with 0-Ⅱb lesions, and 2 with 0-Ⅱb + Ⅱc lesions, showing an accuracy of 100%. CONCLUSION: The results suggest the usefulness of ME-NBI for evaluating the area of superficial, depressed- and flat-type differentiated adenocarcinoma of the stomach.
ISSN:1948-5190
1948-5190
DOI:10.4253/wjge.v4.i8.362