Diagnosis of small intramucosal signet ring cell carcinoma of the stomach by non-magnifying narrow-band imaging: A pilot study

AIM: To examine the efficacy of non-magnifying narrow-band imaging(NM-NBI) imaging for small signet ring cell carcinoma(SRC).METHODS: We retrospectively analyzed 14 consecutive small intramucosal SRCs that had been treated with endoscopic submucosal dissection(ESD) and 14 randomly selected whitish g...

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Published in:World journal of gastrointestinal endoscopy 2015-09, Vol.7 (12), p.1070-1077
Main Authors: Watari, Jiro, Tomita, Toshihiko, Ikehara, Hisatomo, Taki, Masato, Ogawa, Tomohiro, Yamasaki, Takahisa, Kondo, Takashi, Toyoshima, Fumihiko, Sakurai, Jun, Kono, Tomoaki, Tozawa, Katsuyuki, Ohda, Yoshio, Oshima, Tadayuki, Fukui, Hirokazu, Hirota, Seiichi, Miwa, Hiroto
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cancer
Signet
carcinoma
Narrow-b
cell
Gastric
Retrospective Study
ring
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container_issue 12
container_start_page 1070
container_title World journal of gastrointestinal endoscopy
container_volume 7
creator Watari, Jiro
Tomita, Toshihiko
Ikehara, Hisatomo
Taki, Masato
Ogawa, Tomohiro
Yamasaki, Takahisa
Kondo, Takashi
Toyoshima, Fumihiko
Sakurai, Jun
Kono, Tomoaki
Tozawa, Katsuyuki
Ohda, Yoshio
Oshima, Tadayuki
Fukui, Hirokazu
Hirota, Seiichi
Miwa, Hiroto
description AIM: To examine the efficacy of non-magnifying narrow-band imaging(NM-NBI) imaging for small signet ring cell carcinoma(SRC).METHODS: We retrospectively analyzed 14 consecutive small intramucosal SRCs that had been treated with endoscopic submucosal dissection(ESD) and 14 randomly selected whitish gastric ulcer scars(control). The strength and shape of the SRCs and whitish scars by NM-NBI and white-light imaging(WLI) were assessed with Image J(NIH, Bethesda).RESULTS: NM-NBI findings of SRC showed a clearly isolated whitish area amid the brown color of the surrounding normal mucosa. The NBI index, which indicates the potency of NBI for visualizing SRC, was significantly higher than the WLI index(P = 0.001), indicating SRC was more clearly identified by NM-NBI. Although the NBI index was not significantly different between SRCs and controls, the circle(C)-index, as an index of circularity of tumor shape, was significantly higher in SRCs(P = 0.001). According to the receiveroperating characteristic analysis, the resulting cut-off value of the circularity index(C-index) for SRC was 0.60(85.7% sensitivity, 85.7% specificity). Thus a lesion with a C-index ≥ 0.6 was significantly more likely to be an SRC than a gastric ulcer scar(OR = 36.0; 95%CI: 4.33-299.09; P = 0.0009).CONCLUSION: Small isolated whitish round area by NM-NBI endoscopy is a useful finding of SRCs which is the indication for ESD.
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The strength and shape of the SRCs and whitish scars by NM-NBI and white-light imaging(WLI) were assessed with Image J(NIH, Bethesda).RESULTS: NM-NBI findings of SRC showed a clearly isolated whitish area amid the brown color of the surrounding normal mucosa. The NBI index, which indicates the potency of NBI for visualizing SRC, was significantly higher than the WLI index(P = 0.001), indicating SRC was more clearly identified by NM-NBI. Although the NBI index was not significantly different between SRCs and controls, the circle(C)-index, as an index of circularity of tumor shape, was significantly higher in SRCs(P = 0.001). According to the receiveroperating characteristic analysis, the resulting cut-off value of the circularity index(C-index) for SRC was 0.60(85.7% sensitivity, 85.7% specificity). Thus a lesion with a C-index ≥ 0.6 was significantly more likely to be an SRC than a gastric ulcer scar(OR = 36.0; 95%CI: 4.33-299.09; P = 0.0009).CONCLUSION: Small isolated whitish round area by NM-NBI endoscopy is a useful finding of SRCs which is the indication for ESD.</description><identifier>ISSN: 1948-5190</identifier><identifier>EISSN: 1948-5190</identifier><identifier>DOI: 10.4253/wjge.v7.i12.1070</identifier><identifier>PMID: 26380053</identifier><language>eng</language><publisher>United States: Baishideng Publishing Group Inc</publisher><subject>cancer;Signet ; carcinoma;Narrow-b ; cell ; Gastric ; Retrospective Study ; ring</subject><ispartof>World journal of gastrointestinal endoscopy, 2015-09, Vol.7 (12), p.1070-1077</ispartof><rights>The Author(s) 2015. Published by Baishideng Publishing Group Inc. All rights reserved. 2015</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c370t-57e43b754e20b04dabc01af8de4b622a3e19d1604c9c260f7484856eaef0e0e73</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/71419X/71419X.jpg</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4564834/pdf/$$EPDF$$P50$$Gpubmedcentral$$H</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4564834/$$EHTML$$P50$$Gpubmedcentral$$H</linktohtml><link.rule.ids>230,315,733,786,790,891,27957,27958,53827,53829</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26380053$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Watari, Jiro</creatorcontrib><creatorcontrib>Tomita, Toshihiko</creatorcontrib><creatorcontrib>Ikehara, Hisatomo</creatorcontrib><creatorcontrib>Taki, Masato</creatorcontrib><creatorcontrib>Ogawa, Tomohiro</creatorcontrib><creatorcontrib>Yamasaki, Takahisa</creatorcontrib><creatorcontrib>Kondo, Takashi</creatorcontrib><creatorcontrib>Toyoshima, Fumihiko</creatorcontrib><creatorcontrib>Sakurai, Jun</creatorcontrib><creatorcontrib>Kono, Tomoaki</creatorcontrib><creatorcontrib>Tozawa, Katsuyuki</creatorcontrib><creatorcontrib>Ohda, Yoshio</creatorcontrib><creatorcontrib>Oshima, Tadayuki</creatorcontrib><creatorcontrib>Fukui, Hirokazu</creatorcontrib><creatorcontrib>Hirota, Seiichi</creatorcontrib><creatorcontrib>Miwa, Hiroto</creatorcontrib><title>Diagnosis of small intramucosal signet ring cell carcinoma of the stomach by non-magnifying narrow-band imaging: A pilot study</title><title>World journal of gastrointestinal endoscopy</title><addtitle>World Journal of Gastrointestinal Endoscopy</addtitle><description>AIM: To examine the efficacy of non-magnifying narrow-band imaging(NM-NBI) imaging for small signet ring cell carcinoma(SRC).METHODS: We retrospectively analyzed 14 consecutive small intramucosal SRCs that had been treated with endoscopic submucosal dissection(ESD) and 14 randomly selected whitish gastric ulcer scars(control). The strength and shape of the SRCs and whitish scars by NM-NBI and white-light imaging(WLI) were assessed with Image J(NIH, Bethesda).RESULTS: NM-NBI findings of SRC showed a clearly isolated whitish area amid the brown color of the surrounding normal mucosa. The NBI index, which indicates the potency of NBI for visualizing SRC, was significantly higher than the WLI index(P = 0.001), indicating SRC was more clearly identified by NM-NBI. Although the NBI index was not significantly different between SRCs and controls, the circle(C)-index, as an index of circularity of tumor shape, was significantly higher in SRCs(P = 0.001). According to the receiveroperating characteristic analysis, the resulting cut-off value of the circularity index(C-index) for SRC was 0.60(85.7% sensitivity, 85.7% specificity). Thus a lesion with a C-index ≥ 0.6 was significantly more likely to be an SRC than a gastric ulcer scar(OR = 36.0; 95%CI: 4.33-299.09; P = 0.0009).CONCLUSION: Small isolated whitish round area by NM-NBI endoscopy is a useful finding of SRCs which is the indication for ESD.</description><subject>cancer;Signet</subject><subject>carcinoma;Narrow-b</subject><subject>cell</subject><subject>Gastric</subject><subject>Retrospective Study</subject><subject>ring</subject><issn>1948-5190</issn><issn>1948-5190</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNpVUcFu1DAQtRCIVqV3TshHLlnGsR0nHJCqQgtSJS5wthxnknWV2Fs72WovfDuOdlkVXzyeee95Zh4h7xlsRCn5p-fHATd7tXGs3DBQ8IpcskbUhWQNvH4RX5DrlB4hHyEUMPWWXJQVrwEkvyR_vjoz-JBcoqGnaTLjSJ2fo5kWG5IZaXKDx5lG5wdqMVetidb5MJmVMG-Rpjk_7Ja2B-qDL6as5_rDivcmxvBctMZ31OV8zn2mN3TnxjBn2tId3pE3vRkTXp_uK_L77tuv2-_Fw8_7H7c3D4XlCuZCKhS8VVJgCS2IzrQWmOnrDkVblaXhyJqOVSBsY8sKeiVqUcsKDfaAgIpfkS9H3d3STthZXEcc9S7mtuJBB-P0_xXvtnoIey1kJWoussDHk0AMTwumWU8urfswHsOSNFOMN0IqWKFwhNoYUorYn79hoFfn9Oqc3iudndOrc5ny4WV7Z8I_nzKAnzS3wQ9PeZFnTK2UUKxqJOShG8nFMaplyf8C7M6oAQ</recordid><startdate>20150910</startdate><enddate>20150910</enddate><creator>Watari, Jiro</creator><creator>Tomita, Toshihiko</creator><creator>Ikehara, Hisatomo</creator><creator>Taki, Masato</creator><creator>Ogawa, Tomohiro</creator><creator>Yamasaki, Takahisa</creator><creator>Kondo, Takashi</creator><creator>Toyoshima, Fumihiko</creator><creator>Sakurai, Jun</creator><creator>Kono, Tomoaki</creator><creator>Tozawa, Katsuyuki</creator><creator>Ohda, Yoshio</creator><creator>Oshima, Tadayuki</creator><creator>Fukui, Hirokazu</creator><creator>Hirota, Seiichi</creator><creator>Miwa, Hiroto</creator><general>Baishideng Publishing Group Inc</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W91</scope><scope>~WA</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20150910</creationdate><title>Diagnosis of small intramucosal signet ring cell carcinoma of the stomach by non-magnifying narrow-band imaging: A pilot study</title><author>Watari, Jiro ; 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The strength and shape of the SRCs and whitish scars by NM-NBI and white-light imaging(WLI) were assessed with Image J(NIH, Bethesda).RESULTS: NM-NBI findings of SRC showed a clearly isolated whitish area amid the brown color of the surrounding normal mucosa. The NBI index, which indicates the potency of NBI for visualizing SRC, was significantly higher than the WLI index(P = 0.001), indicating SRC was more clearly identified by NM-NBI. Although the NBI index was not significantly different between SRCs and controls, the circle(C)-index, as an index of circularity of tumor shape, was significantly higher in SRCs(P = 0.001). According to the receiveroperating characteristic analysis, the resulting cut-off value of the circularity index(C-index) for SRC was 0.60(85.7% sensitivity, 85.7% specificity). Thus a lesion with a C-index ≥ 0.6 was significantly more likely to be an SRC than a gastric ulcer scar(OR = 36.0; 95%CI: 4.33-299.09; P = 0.0009).CONCLUSION: Small isolated whitish round area by NM-NBI endoscopy is a useful finding of SRCs which is the indication for ESD.</notes><notes>Gastric cancer;Signet ring cell carcinoma;Narrow-b</notes><notes>Jiro Watari;Toshihiko Tomita;Hisatomo Ikehara;Masato Taki;Tomohiro Ogawa;Takahisa Yamasaki;Takashi Kondo;Fumihiko Toyoshima;Jun Sakurai;Tomoaki Kono;Katsuyuki Tozawa;Yoshio Ohda;Tadayuki Oshima;Hirokazu Fukui;Seiichi Hirota;Hiroto Miwa;Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya,Hyogo 663-8501, Japan;Department of Surgical Pathology, Hyogo College of Medicine, Nishinomiya, Hyogo 663-8501, Japan;Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine,Nishinomiya,Hyogo 663-8501, Japan</notes><notes>ObjectType-Article-1</notes><notes>SourceType-Scholarly Journals-1</notes><notes>ObjectType-Feature-2</notes><notes>content type line 23</notes><notes>Correspondence to: Jiro Watari, MD, PhD, Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, 1-1, Mukogawa-cho, Nishinomiya, Hyogo 663-8501, Japan. watarij@hyo-med.ac.jp</notes><notes>Telephone: +81-798-456662 Fax: +81-798-456661</notes><notes>Author contributions: Watari J and Miwa H designed and performed the research study; Tomita T, Ikehara H, Taki M, Ogawa T, Yamasaki T, Kondo T, Toyoshima F, Sakurai J, Kono T, Tozawa K, Ohda Y, Oshima T and Fukui H helped to collect the data; Ogawa T performed the quantification of endoscopic findings; Hirota S diagnosed the histology; Watari J performed statistical analysis and wrote the paper.</notes><abstract>AIM: To examine the efficacy of non-magnifying narrow-band imaging(NM-NBI) imaging for small signet ring cell carcinoma(SRC).METHODS: We retrospectively analyzed 14 consecutive small intramucosal SRCs that had been treated with endoscopic submucosal dissection(ESD) and 14 randomly selected whitish gastric ulcer scars(control). The strength and shape of the SRCs and whitish scars by NM-NBI and white-light imaging(WLI) were assessed with Image J(NIH, Bethesda).RESULTS: NM-NBI findings of SRC showed a clearly isolated whitish area amid the brown color of the surrounding normal mucosa. The NBI index, which indicates the potency of NBI for visualizing SRC, was significantly higher than the WLI index(P = 0.001), indicating SRC was more clearly identified by NM-NBI. Although the NBI index was not significantly different between SRCs and controls, the circle(C)-index, as an index of circularity of tumor shape, was significantly higher in SRCs(P = 0.001). According to the receiveroperating characteristic analysis, the resulting cut-off value of the circularity index(C-index) for SRC was 0.60(85.7% sensitivity, 85.7% specificity). Thus a lesion with a C-index ≥ 0.6 was significantly more likely to be an SRC than a gastric ulcer scar(OR = 36.0; 95%CI: 4.33-299.09; P = 0.0009).CONCLUSION: Small isolated whitish round area by NM-NBI endoscopy is a useful finding of SRCs which is the indication for ESD.</abstract><cop>United States</cop><pub>Baishideng Publishing Group Inc</pub><pmid>26380053</pmid><doi>10.4253/wjge.v7.i12.1070</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record>
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subjects cancer
Signet
carcinoma
Narrow-b
cell
Gastric
Retrospective Study
ring
title Diagnosis of small intramucosal signet ring cell carcinoma of the stomach by non-magnifying narrow-band imaging: A pilot study
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