Linked color imaging improves endoscopic diagnosis of active Helicobacter pylori infection
Osamu Dohi,Nobuaki Yagi,Yuriko Onozawa,Reiko Kimura-Tsuchiya,Atsushi Majima,Tomoko Kitaichi,Yusuke Horii,Kentaro Suzuki,Akira Tomie,Tetsuya Okayama,Naohisa Yoshida,Kazuhiro Kamada,Kazuhiro Katada,Kazuhiko Uchiyama,Takeshi Ishikawa,Tomohisa Takagi,Osamu Handa,Hideyuki Konishi,Yuji Naito,Yoshito Itoh +19 more
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TLDR
LCI is a novel image-enhanced endoscopy and is more useful for diagnosing H. pylori infection than is WLI.Abstract:
Background and study aims: Linked color imaging (LCI) is a new image-enhanced endoscopy technique using a laser light source to enhance slight differences in mucosal color. The aim of this study was to compare the usefulness of LCI and conventional white light imaging (WLI) endoscopy for diagnosing Helicobacter pylori (H. pylori). Patients and methods: We retrospectively analyzed images from 60 patients examined with WLI and LCI endoscopy between October 2013 and May 2014. Thirty patients had H. pylori infections, and other thirty patients tested negative for H. pylori after eradication therapy. Four endoscopists evaluated the 2 types of images to determine which was better at facilitating a diagnosis of H. pylori infection. Results:
H. pylori infection was identified with LCI by enhancing the red appearance of the fundic gland mucosa. The accuracy, sensitivity, and specificity for diagnosing H. pylori infection using WLI were 74.2 %, 81.7 %, and 66.7 %, respectively, while those for LCI were 85.8 %, 93.3 %, and 78.3 %, respectively. Thus, the accuracy and sensitivity for LCI were significantly higher than those for WLI (P = 0.002 and P = 0.011, respectively). The kappa values for the inter- and intraobserver variability among the 4 endoscopists were higher for LCI than for WLI. Conclusions:
H. pylori infection can be identified by enhancing endoscopic images of the diffuse redness of the fundic gland using LCI. LCI is a novel image-enhanced endoscopy and is more useful for diagnosing H. pylori infection than is WLI.read more
Citations
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Journal ArticleDOI
Application of Convolutional Neural Networks in the Diagnosis of Helicobacter pylori Infection Based on Endoscopic Images.
Satoki Shichijo,Shuhei Nomura,Kazuharu Aoyama,Yoshitaka Nishikawa,Motoi Miura,Takahide Shinagawa,Hirotoshi Takiyama,Tetsuya Tanimoto,Soichiro Ishihara,Keigo Matsuo,Tomohiro Tada +10 more
TL;DR: H. pylori gastritis could be diagnosed based on endoscopic images using CNN with higher accuracy and in a considerably shorter time compared to manual diagnosis by endoscopists.
Journal ArticleDOI
Artificial intelligence diagnosis of Helicobacter pylori infection using blue laser imaging-bright and linked color imaging: a single-center prospective study
TL;DR: An AI diagnosing system that predicts H. pylori infection status using endoscopic images to improve the accuracy and productivity of endoscopic examination is established and is likely to become a useful image diagnostic tool.
Journal ArticleDOI
Guidelines for endoscopic diagnosis of early gastric cancer.
Kenshi Yao,Noriya Uedo,Tomoari Kamada,Toshiaki Hirasawa,Takashi Nagahama,Shigetaka Yoshinaga,Masashi Oka,Kazuhiko Inoue,Katsuhiro Mabe,Takashi Yao,Masahiro Yoshida,Isao Miyashiro,Kazuma Fujimoto,Hisao Tajiri +13 more
TL;DR: The Japan Gastroenterological Endoscopy Society developed the Guideline for Endoscopic Diagnosis of Early Gastric Cancer based on scientific methods to provide the current guideline.
Journal ArticleDOI
Linked color imaging (LCI), a novel image-enhanced endoscopy technology, emphasizes the color of early gastric cancer
Hiromitsu Kanzaki,Ryuta Takenaka,Yoshiro Kawahara,Daisuke Kawai,Yuka Obayashi,Yuki Baba,Hiroyuki Sakae,Tatsuhiro Gotoda,Yoshiyasu Kono,Ko Miura,Masaya Iwamuro,Seiji Kawano,Takehiro Tanaka,Hiroyuki Okada +13 more
TL;DR: LCI had a larger ΔE than WLI, which may allow easy recognition and early detection of gastric cancer, even for inexperienced endoscopists.
Journal ArticleDOI
Blue laser imaging-bright improves the real-time detection rate of early gastric cancer: a randomized controlled study
Osamu Dohi,Nobuaki Yagi,Yuji Naito,Akifumi Fukui,Yasuyuki Gen,Naoto Iwai,Tomohiro Ueda,Naohisa Yoshida,Kazuhiro Kamada,Kazuhiko Uchiyama,Tomohisa Takagi,Hideyuki Konishi,Akio Yanagisawa,Yoshito Itoh +13 more
TL;DR: Primary BLI-bright had a significantly greater ability to detect EGCs in patients with a history of endoscopic resection for EGC, no Helicobacter pylori infection in the stomach after eradication therapy.
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