Clinical Endoscopy

Hiroyuki Osawa

7 Articles

Linked Color Imaging Demonstrates Characteristic Findings in Semi-Pedunculated Gastric Adenocarcinoma in Helicobacter pylori-Negative Normal Mucosa: Yuji Hiraoka, Yoshimasa Miura, Hiroyuki Osawa, Mio Sakaguchi, Masato Tsunoda, Alan Kawarai Lefor, Hironori Yamamoto; Clin Endosc 2021;54(1):136-138. Published online August 21, 2020; DOI: https://doi.org/10.5946/ce.2020.059

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The Diagnostic Performance of Linked Color Imaging Compared to White Light Imaging in Endoscopic Diagnosis of Helicobacter pylori Infection: A Systematic Review and Meta-Analysis
Jae Gon Lee, In Kyung Yoo, Abdullah Ozgur Yeniova, Sang Pyo Lee
Gut and Liver.2024; 18(3): 444. CrossRef
Linked Color Imaging for Stomach
Eiji Umegaki, Hiraku Misawa, Osamu Handa, Hiroshi Matsumoto, Akiko Shiotani
Diagnostics.2023; 13(3): 467. CrossRef
Role of linked color imaging for upper gastrointestinal disease: present and future
Sang Pyo Lee
Clinical Endoscopy.2023; 56(5): 546. CrossRef
Appropriate Color Enhancement Settings for Blue Laser Imaging Facilitates the Diagnosis of Early Gastric Cancer with High Color Contrast
Yuji Hiraoka, Yoshimasa Miura, Hiroyuki Osawa, Yoshie Nomoto, Haruo Takahashi, Masato Tsunoda, Manabu Nagayama, Takashi Ueno, Alan Kawarai Lefor, Hironori Yamamoto
Journal of Gastric Cancer.2021; 21(2): 142. CrossRef

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124 Download
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New Diagnostic Approach for Esophageal Squamous Cell Neoplasms Using Linked Color Imaging and Blue Laser Imaging Combined with Iodine Staining: Masato Tsunoda, Yoshimasa Miura, Hiroyuki Osawa, Tsevelnorov Khurelbaatar, Mio Sakaguchi, Hisashi Fukuda, Alan Kawarai Lefor, Hironori Yamamoto; Clin Endosc 2019;52(5):497-501. Published online April 16, 2019; DOI: https://doi.org/10.5946/ce.2018.195

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A 62-year-old man with a flat early esophageal cancer was referred for endoscopic treatment. White light imaging revealed a pale red lesion, whereas linked color imaging (LCI) and blue laser imaging (BLI) yielded purple and brown images, respectively. Iodine staining demonstrated a large unstained area with a homogenous but very weak pink-color sign. This area appeared more clearly as purple and green on LCI and BLI, respectively; however, a different colored portion was observed at the 4 o’clock position inside the iodineunstained area. Histopathology findings of the resected specimen revealed squamous intraepithelial neoplasia at the 4 o’clock position and an esophageal squamous cell carcinoma in the remaining iodine-unstained area. LCI and BLI combined with iodine staining produce characteristic images that overcomes the pink-color sign, reflecting the histological features of a flat esophageal neoplasm. This new method is useful for detailed evaluation of early flat squamous cell neoplasms.

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Linked color imaging vs Lugol chromoendoscopy for esophageal squamous cell cancer and precancerous lesion screening: A noninferiority study
Zi-Xin Wang, Long-Song Li, Song Su, Jin-Ping Li, Bo Zhang, Nan-Jun Wang, Sheng-Zhen Liu, Sha-Sha Wang, Shuai Zhang, Ya-Wei Bi, Fei Gao, Qun Shao, Ning Xu, Bo-Zong Shao, Yi Yao, Fang Liu, En-Qiang Linghu, Ning-Li Chai
World Journal of Gastroenterology.2023; 29(12): 1899. CrossRef
Usefulness of linked color imaging in the early detection of superficial esophageal squamous cell carcinomas
Koki Nakamura, Yuji Urabe, Shiro Oka, Naoko Nagasaki, Naoki Yorita, Kosaku Hata, Kazuhiko Masuda, Mio Kurihara, Takahiro Kotachi, Tomoyuki Boda, Shinji Tanaka, Kazuaki Chayama
Esophagus.2021; 18(1): 118. CrossRef
Inter‐observer variability of experts and trainees for the diagnosis of reflux esophagitis: Comparison of linked color imaging, blue laser imaging, and white light imaging
Sang Pyo Lee, Sea Hyub Kae, Hyun Joo Jang, Dong Hee Koh, Eun Suk Jung
Journal of Digestive Diseases.2021; 22(7): 425. CrossRef

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156 Download
3 Web of Science
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Blue Laser Imaging with a Small-Caliber Endoscope Facilitates Detection of Early Gastric Cancer: Haruo Takahashi, Yoshimasa Miura, Hiroyuki Osawa, Takahito Takezawa, Yuji Ino, Masahiro Okada, Alan Kawarai Lefor, Hironori Yamamoto; Clin Endosc 2019;52(3):273-277. Published online August 14, 2018; DOI: https://doi.org/10.5946/ce.2018.100

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Conventional endoscopy often misses early gastric cancers with minimal red discoloration because they cannot be distinguished from inflamed mucosa. We treated a patient with a small early gastric cancer that was difficult to diagnose using conventional endoscopy. Conventional endoscopy using a small-caliber endoscope showed only subtle red discoloration of the gastric mucosa. However, blue laser imaging showed a clearly discolored area measuring 10 mm in diameter around the red lesion, which was distinct from the surrounding inflamed mucosa. Irregular vessels on the tumor surface (suspicious for early gastric cancer) were observed even with small-caliber endoscopy. Biopsy revealed a well-moderately differentiated tubular adenocarcinoma, and endoscopic submucosal dissection was performed. Histopathological examination of the specimen confirmed well-moderately differentiated adenocarcinoma localized to the mucosa with slight depression compared to the surrounding mucosa, consistent with the endoscopic findings. This small early gastric cancer became clearly visible with blue laser imaging using small-caliber endoscopy.

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Diagnostic performance of blue laser imaging for early detection of gastric cancer: A systematic review and meta-analysis
Mohammed Rifat Shaik, Andrew Canakis, Nishat Anjum Shaik, Shivanand Bomman, Dushyant Singh Dahiya, Emily Gorman, Mohammad Bilal, Saurabh Chandan
Indian Journal of Gastroenterology.2024; 43(5): 976. CrossRef
Improved detection of early gastric cancer with linked color imaging using an ultrathin endoscope: a video-based analysis
Tsevelnorov Khurelbaatar, Yoshimasa Miura, Hiroyuki Osawa, Yuji Ino, Takahito Takezawa, Chihiro Iwashita, Yoshie Nomoto, Masato Tsunoda, Takashi Ueno, Haruo Takahashi, Manabu Nagayama, Hisashi Fukuda, Alan Kawarai Lefor, Hironori Yamamoto
Endoscopy International Open.2022; 10(05): E644. CrossRef
Current status of the gastric cancer screening program in Korea
Young-Il Kim, Il Ju Choi
Journal of the Korean Medical Association.2022; 65(5): 250. CrossRef
Current Evidence for a Paradigm Shift in Gastric Cancer Prevention From Endoscopic Screening toHelicobacter pyloriEradication in Korea
Young-Il Kim, Il Ju Choi
Journal of Gastric Cancer.2022; 22(3): 169. CrossRef
Clinical Features of False-Negative Early Gastric Cancers: A Retrospective Study of Endoscopic Submucosal Dissection Cases
Kohei Oka, Naoto Iwai, Takashi Okuda, Tasuku Hara, Yutaka Inada, Toshifumi Tsuji, Toshiyuki Komaki, Junichi Sakagami, Yuji Naito, Keizo Kagawa, Yoshito Itoh, Fabiana Zingone
Gastroenterology Research and Practice.2021; 2021: 1. CrossRef
Appropriate Color Enhancement Settings for Blue Laser Imaging Facilitates the Diagnosis of Early Gastric Cancer with High Color Contrast
Yuji Hiraoka, Yoshimasa Miura, Hiroyuki Osawa, Yoshie Nomoto, Haruo Takahashi, Masato Tsunoda, Manabu Nagayama, Takashi Ueno, Alan Kawarai Lefor, Hironori Yamamoto
Journal of Gastric Cancer.2021; 21(2): 142. CrossRef
Linked Color Imaging and Blue Laser Imaging for Upper Gastrointestinal Screening
Hiroyuki Osawa, Yoshimasa Miura, Takahito Takezawa, Yuji Ino, Tsevelnorov Khurelbaatar, Yuichi Sagara, Alan Kawarai Lefor, Hironori Yamamoto
Clinical Endoscopy.2018; 51(6): 513. CrossRef

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171 Download
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Advanced Treatment and Imaging in Colonoscopy: The Pocket-Creation Method for Complete Resection and Linked Color Imaging for Better Detection of Early Neoplastic Lesions by Colonoscopy: Hironori Yamamoto, Satoshi Shinozaki, Yoshikazu Hayashi, Yoshimasa Miura, Tsevelnorov Khurelbaatar, Hiroyuki Osawa, Alan Kawarai Lefor; Clin Endosc 2019;52(2):107-113. Published online January 10, 2019; DOI: https://doi.org/10.5946/ce.2018.189

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Early detection and resection of neoplastic lesions are key objectives to diminish colorectal cancer mortality. Resection of superficial colorectal neoplasms, cold snare polypectomy, endoscopic mucosal resection, and endoscopic submucosal dissection have all been developed and used worldwide. The pocket-creation method facilitates the resection of tumors in difficult and routine locations. Early detection is the most important first step to maximize the benefits of recent advancements in endoscopic techniques. However, the detection of small, flat-shaped, or faded color lesions remains difficult. Linked color imaging, a novel multi-light technology, facilitates the recognition of minor differences in tissue by enhancing the color contrast between early colorectal neoplasms and surrounding normal mucosa in a bright field of view. The most striking feature of linked color imaging is its ability to display the color of early neoplastic lesions as distinct from inflammatory changes, both of which have similar “redness” when viewed using white light imaging. To increase the detection rate of neoplasms, linked color imaging should be used from the outset for endoscopic observation. Early detection of superficial colorectal tumors can result in decreased mortality from colorectal cancer and maintain a good quality of life for patients.

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Comparison of blue laser imaging and light‐emitting diode‐blue light imaging for the characterization of colorectal polyps using the Japan narrow‐band imaging expert team classification: The LASEREO and ELUXEO COLonoscopic study
Masahiro Okada, Naohisa Yoshida, Hiroshi Kashida, Yoshikazu Hayashi, Satoshi Shinozaki, Shiori Yoshimoto, Toshihiro Fujinuma, Hirotsugu Sakamoto, Keijiro Sunada, Yuri Tomita, Osamu Dohi, Ken Inoue, Ryohei Hirose, Yoshito Itoh, Yoriaki Komeda, Ikue Sekai,
DEN Open.2024;[Epub] CrossRef
Linked color imaging versus white light imaging in the diagnosis of colorectal lesions: a meta-analysis of randomized controlled trials
Yining Sun, Xiu-He Lv, Xian Zhang, Jin Wang, Huimin Wang, Jin-Lin Yang
Therapeutic Advances in Gastroenterology.2023;[Epub] CrossRef
The Pocket-Creation Method Facilitates Endoscopic Submucosal Dissection of Gastric Neoplasms Along the Lesser Curvature at the Gastric Angle
Masafumi Kitamura, Yoshimasa Miura, Satoshi Shinozaki, Alan Kawarai Lefor, Hironori Yamamoto
Frontiers in Medicine.2022;[Epub] CrossRef
Development and validation of the linked color imaging classification for endoscopic prediction of colorectal polyp histology
Min Min, Shou Bin Ning, Duan Min Hu, Yoshikazu Hayashi, Yan Liu
Journal of Digestive Diseases.2022; 23(5-6): 310. CrossRef
Combination of endoscopic submucosal dissection techniques, a practical solution for difficult cases
Dong-Hoon Yang
Clinical Endoscopy.2022; 55(5): 626. CrossRef
Medical needs related to the endoscopic technology and colonoscopy for colorectal cancer diagnosis
Juan Francisco Ortega-Morán, Águeda Azpeitia, Luisa F. Sánchez-Peralta, Luis Bote-Curiel, Blas Pagador, Virginia Cabezón, Cristina L. Saratxaga, Francisco M. Sánchez-Margallo
BMC Cancer.2021;[Epub] CrossRef
Comparison of long-term recurrence-free survival between primary surgery and endoscopic resection followed by secondary surgery in T1 colorectal cancer
Eun Hye Oh, Nayoung Kim, Sung Wook Hwang, Sang Hyoung Park, Dong-Hoon Yang, Byong Duk Ye, Seung-Jae Myung, Suk-Kyun Yang, Chang Sik Yu, Jin Cheon Kim, Jeong-Sik Byeon
Gastrointestinal Endoscopy.2021; 94(2): 394. CrossRef
The pocket-creation method facilitates gastric endoscopic submucosal dissection and overcomes challenging situations
Masafumi Kitamura, Yoshimasa Miura, Satoshi Shinozaki, Hironori Yamamoto
VideoGIE.2021; 6(9): 390. CrossRef
Application of linked color imaging in the diagnosis of early gastrointestinal neoplasms and precancerous lesions: a review
Shanshan Wang, Lei Shen, Hesheng Luo
Therapeutic Advances in Gastroenterology.2021;[Epub] CrossRef
Colon polyp detection using linked color imaging compared to white light imaging: Systematic review and meta‐analysis
Satoshi Shinozaki, Yasutoshi Kobayashi, Yoshikazu Hayashi, Hirotsugu Sakamoto, Keijiro Sunada, Alan Kawarai Lefor, Hironori Yamamoto
Digestive Endoscopy.2020; 32(6): 874. CrossRef
The Role of Cholangioscopy in the Management of Primary Sclerosing Cholangitis
Aldo J. Montano-Loza, Maryam Ebadi, Gurpal Sandha
Current Hepatology Reports.2020; 19(2): 78. CrossRef
Linked color imaging for the detection of early gastrointestinal neoplasms
Satoshi Shinozaki, Hiroyuki Osawa, Yoshikazu Hayashi, Alan Kawarai Lefor, Hironori Yamamoto
Therapeutic Advances in Gastroenterology.2019;[Epub] CrossRef

6,936 View
218 Download
11 Web of Science
12 Crossref

Linked Color Imaging and Blue Laser Imaging for Upper Gastrointestinal Screening: Hiroyuki Osawa, Yoshimasa Miura, Takahito Takezawa, Yuji Ino, Tsevelnorov Khurelbaatar, Yuichi Sagara, Alan Kawarai Lefor, Hironori Yamamoto; Clin Endosc 2018;51(6):513-526. Published online November 2, 2018; DOI: https://doi.org/10.5946/ce.2018.132

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White light imaging (WLI) may not reveal early upper gastrointestinal cancers. Linked color imaging (LCI) produces bright images in the distant view and is performed for the same screening indications as WLI. LCI and blue laser imaging (BLI) provide excellent visibility of gastric cancers in high color contrast with respect to the surrounding tissue. The characteristic purple and green color of metaplasias on LCI and BLI, respectively, serve to increase the contrast while visualizing gastric cancers regardless of a history of Helicobacter pylori eradication.
LCI facilitates color-based recognition of early gastric cancers of all morphological types, including flat lesions or those in an H. pylori-negative normal background mucosa as well as the diagnosis of inflamed mucosae including erosions. LCI reveals changes in mucosal color before the appearance of morphological changes in various gastric lesions. BLI is superior to LCI in the detection of early esophageal cancers and abnormal findings of microstructure and microvasculature in close-up views of upper gastrointestinal cancers. Excellent images can also be obtained with transnasal endoscopy. Using a combination of these modalities allows one to obtain images useful for establishing a diagnosis. It is important to observe esophageal cancers (brown) using BLI and gastric cancers (orange) surrounded by intestinal metaplasia (purple) and duodenal cancers (orange) by LCI.

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Higher detectability of gastric cancer after Helicobacter pylori eradication in texture and color enhancement imaging mode 2 in screening endoscopy
Yuichiro Kemmoto, Shun‐ichiro Ozawa, Ryota Sueki, Keiichi Furuya, Daimon Shirose, Satoshi Wakao, Kuniaki Shindo, Atsushi Nagata, Tadashi Sato
DEN Open.2024;[Epub] CrossRef
Simultaneous detection of Helicobacter pylori infection comparing between white light and image-enhanced endoscopy
Boonyaorn Chatrangsun, Natsuda Aumpan, Bubpha Pornthisarn, Soonthorn Chonprasertsuk, Sith Siramolpiwat, Patommatat Bhanthumkomol, Pongjarat Nunanan, Navapan Issariyakulkarn, Varocha Mahachai, Yoshio Yamaoka, Ratha-korn Vilaichone
BMC Gastroenterology.2024;[Epub] CrossRef
Linked Color Imaging of Barrett’s Esophageal Adenocarcinoma: Effects on Visibility
Masahiro Saito, Tomoyuki Koike, Yuki Ohara, Yohei Ogata, Takeshi Kanno, Xiaoyi Jin, Waku Hatta, Kaname Uno, Naoki Asano, Akira Imatani, Atsushi Masamune
Gastroenterology Insights.2024; 15(1): 145. CrossRef
A Case of Duodenal Adenocarcinoma Effectively Highlighted by Linked Color Imaging and Confirmed by Histopathology
Kimitoshi Kubo, Xinhan Zhang, Ikko Tanaka, Noriko Kimura
Cureus.2024;[Epub] CrossRef
Surveillance esophagogastroduodenoscopy using linked color imaging and narrow‐band imaging: A multicenter randomized controlled trial
Marina Kubo, Shoko Ono, Osamu Dohi, Hayato Fukui, Takuto Hikichi, Tsunetaka Kato, Momoko Tsuda, Mio Matsumoto, Sosuke Kato, Rieko Mukai, Nobuaki Yagi, Ryo Takagi, Naoya Sakamoto, Mototsugu Kato
Journal of Gastroenterology and Hepatology.2024; 39(6): 1065. CrossRef
The Diagnostic Performance of Linked Color Imaging Compared to White Light Imaging in Endoscopic Diagnosis of Helicobacter pylori Infection: A Systematic Review and Meta-Analysis
Jae Gon Lee, In Kyung Yoo, Abdullah Ozgur Yeniova, Sang Pyo Lee
Gut and Liver.2024; 18(3): 444. CrossRef
Diagnostic performance of blue laser imaging for early detection of gastric cancer: A systematic review and meta-analysis
Mohammed Rifat Shaik, Andrew Canakis, Nishat Anjum Shaik, Shivanand Bomman, Dushyant Singh Dahiya, Emily Gorman, Mohammad Bilal, Saurabh Chandan
Indian Journal of Gastroenterology.2024; 43(5): 976. CrossRef
Cromoendoscopia virtual utilizando BLI en el diagnóstico endoscópico de esófago de Barrett neoplásico y no neoplásico
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Diagnostic accuracy of linked color imaging and white light imaging for early gastric cancer and gastrointestinal metaplasia: a systematic review and meta-analysis
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Frontiers in Oncology.2024;[Epub] CrossRef
Current status and future perspective of linked color imaging for gastric cancer screening: a literature review
Kazuo Yashima, Takumi Onoyama, Hiroki Kurumi, Yohei Takeda, Akira Yoshida, Koichiro Kawaguchi, Naoyuki Yamaguchi, Hajime Isomoto
Journal of Gastroenterology.2023; 58(1): 1. CrossRef
Improvement of detection sensitivity of upper gastrointestinal epithelial neoplasia in linked color imaging based on data of eye tracking
Masayuki Higashino, Shoko Ono, Shogo Matsumoto, Marina Kubo, Naohiro Yasuura, Shuhei Hayasaka, Ikko Tanaka, Yoshihiko Shimoda, Yusuke Nishimura, Masayoshi Ono, Keiko Yamamoto, Yuji Ono, Naoya Sakamoto
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Linked Color Imaging for Stomach
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Diagnostics.2023; 13(3): 467. CrossRef
Impact of linked color imaging and blue laser imaging on the diagnosis of esophageal squamous cell carcinoma in iodine unstained areas
Masato Tsunoda, Yoshimasa Miura, Hiroyuki Osawa, Manabu Nagayama, Yuka Kagaya, Yohei Funayama, Takuma Kobayashi, Mami Togashi, Hiroki Hayashi, Yuji Hiraoka, Yoshie Nomoto, Chihiro Iwashita, Yuji Ino, Haruo Takahashi, Hisashi Fukuda, Alan Kawarai Lefor, Hi
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Helicobacter pylori Infection: Conventional and Molecular Strategies for Bacterial Diagnosis and Antibiotic Resistance Testing
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Current Pharmaceutical Biotechnology.2023; 24(5): 647. CrossRef
Linked color imaging versus conventional white light colonoscopy for the detection of colorectal polyps
Jun Watanabe, Takeshi Kanno, Eiichi Kakehi, Kazuma Rifu, Takehiro Kagaya, Kazuhiko Kotani, Yuki Kataoka
Cochrane Database of Systematic Reviews.2023;[Epub] CrossRef
Role of linked color imaging for upper gastrointestinal disease: present and future
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Clinical Endoscopy.2023; 56(5): 546. CrossRef
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Diagnostic ability of linked color imaging in ultraslim endoscopy to identify neoplastic lesions in the upper gastrointestinal tract
Ken Haruma, Mototsugu Kato, Kenro Kawada, Takahisa Murao, Shoko Ono, Mitsuhiko Suehiro, Shinichiro Hori, Fumisato Sasaki, Tomoyuki Koike, Shinji Kitamura, Osamu Dohi, Hiromitsu Kanzaki, Nobuaki Yagi, Keiichi Hashiguchi, Shiro Oka, Kazuhiro Katada, Ryo Shi
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Incidence of Infection among Subjects with Helicobacter pylori Seroconversion
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Linked color imaging effectively detects the endoscopic atrophic border in transnasal endoscopy
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Journal of Clinical Biochemistry and Nutrition.2022; 70(3): 290. CrossRef
Linked color imaging improves identification of early gastric cancer lesions by expert and non-expert endoscopists
Kiki Fockens, Jeroen de Groof, Joost van der Putten, Tsevelnorov Khurelbaatar, Hisashi Fukuda, Takahito Takezawa, Yoshimasa Miura, Hiroyuki Osawa, Hironori Yamamoto, Jacques Bergman
Surgical Endoscopy.2022; 36(11): 8316. CrossRef
Improved detection of early gastric cancer with linked color imaging using an ultrathin endoscope: a video-based analysis
Tsevelnorov Khurelbaatar, Yoshimasa Miura, Hiroyuki Osawa, Yuji Ino, Takahito Takezawa, Chihiro Iwashita, Yoshie Nomoto, Masato Tsunoda, Takashi Ueno, Haruo Takahashi, Manabu Nagayama, Hisashi Fukuda, Alan Kawarai Lefor, Hironori Yamamoto
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Risk factors for early gastric cancer: focus on Helicobacter pylori gastritis
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Diagnostic accuracy of linked colour imaging versus white light imaging for early gastric cancers: a prospective, multicentre, randomized controlled trial study
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Linked Color Imaging Demonstrates Characteristic Findings in Semi-Pedunculated Gastric Adenocarcinoma in Helicobacter pylori-Negative Normal Mucosa
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Clinical Endoscopy.2021; 54(1): 136. CrossRef
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What Is New in Helicobacter pylori Diagnosis. An Overview
Maria Pina Dore, Giovanni Mario Pes
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Inter‐observer variability of experts and trainees for the diagnosis of reflux esophagitis: Comparison of linked color imaging, blue laser imaging, and white light imaging
Sang Pyo Lee, Sea Hyub Kae, Hyun Joo Jang, Dong Hee Koh, Eun Suk Jung
Journal of Digestive Diseases.2021; 22(7): 425. CrossRef
Appropriate Color Enhancement Settings for Blue Laser Imaging Facilitates the Diagnosis of Early Gastric Cancer with High Color Contrast
Yuji Hiraoka, Yoshimasa Miura, Hiroyuki Osawa, Yoshie Nomoto, Haruo Takahashi, Masato Tsunoda, Manabu Nagayama, Takashi Ueno, Alan Kawarai Lefor, Hironori Yamamoto
Journal of Gastric Cancer.2021; 21(2): 142. CrossRef
Application of linked color imaging in the diagnosis of early gastrointestinal neoplasms and precancerous lesions: a review
Shanshan Wang, Lei Shen, Hesheng Luo
Therapeutic Advances in Gastroenterology.2021;[Epub] CrossRef
Association between abdominal symptoms and gastric body redness in Linked Color Imaging in patients without Helicobacter pylori infection
Tsutomu Takeda, Daisuke Asaoka, Hisanori Utsunomiya, Shotaro Oki, Nobuyuki Suzuki, Daiki Abe, Atsushi Ikeda, Noboru Yatagai, Yoichi Akazawa, Kohei Matsumoto, Kumiko Ueda, Hiroya Ueyama, Kenshi Matsumoto, Mariko Hojo, Shuko Nojiri, Akihito Nagahara
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Diagnosis of Helicobacter pylori Infection and Recent Advances
Hang Yang, Bing Hu
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Clinical Applications of Linked Color Imaging and Blue Laser/Light Imaging in the Screening, Diagnosis, and Treatment of Superficial Colorectal Tumors
Taku Sakamoto, Hourin Cho, Yutaka Saito
Clinical Endoscopy.2021; 54(4): 488. CrossRef
Application of Current Image-Enhanced Endoscopy in Gastric Diseases
Wansik Lee
Clinical Endoscopy.2021; 54(4): 477. CrossRef
Linked-color Imaging May Help Improve the Visibility of Superficial Barrett's Esophageal Adenocarcinoma by Increasing the Color Difference
Masahiro Saito, Tomoyuki Koike, Yuki Ohara, Kenichiro Nakagawa, Takeshi Kanno, Xiaoyi Jin, Waku Hatta, Kaname Uno, Naoki Asano, Akira Imatani, Atsushi Masamune
Internal Medicine.2021; 60(21): 3351. CrossRef
Potential of automatic diagnosis system with linked color imaging for diagnosis of Helicobacter pylori infection
Takeshi Yasuda, Tomoyuki Hiroyasu, Satoru Hiwa, Yuto Okada, Sadanari Hayashi, Yuki Nakahata, Yuriko Yasuda, Tatsushi Omatsu, Akihiro Obora, Takao Kojima, Hiroshi Ichikawa, Nobuaki Yagi
Digestive Endoscopy.2020; 32(3): 373. CrossRef
Linked Color Imaging of Eosinophilic Esophagitis
Yasuhiko Abe, Yu Sasaki, Takashi Kon, Yoshiyuki Ueno
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Optical enhancement imaging versus acetic acid for detecting gastric intestinal metaplasia: A randomized, comparative trial
Rui Ji, Jun Liu, Ming-Ming Zhang, Yue-Yue Li, Xiu-Li Zuo, Xiao Wang, Yan-Qing Li
Digestive and Liver Disease.2020; 52(6): 651. CrossRef
The Efficacy of Linked Color Imaging in the Endoscopic Diagnosis of Barrett’s Esophagus and Esophageal Adenocarcinoma
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Linked color imaging can improve the visibility of superficial non-ampullary duodenal epithelial tumors
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Laser Imaging Facilitates Early Detection of Synchronous Adenocarcinomas in Patients with Barrett’s Esophagus: Chihiro Iwashita, Yoshimasa Miura, Hiroyuki Osawa, Takahito Takezawa, Yuji Ino, Masahiro Okada, Alan K. Lefor, Hironori Yamamoto; Clin Endosc 2017;50(1):81-86. Published online May 9, 2016; DOI: https://doi.org/10.5946/ce.2016.027

Abstract PDF PubReader ePub

Barrett’s adenocarcinoma may occur in multiple sites, and recurrence and metachronous lesions are the major problems with endoscopic resection. Therefore, early detection of such lesions is ideal to achieve complete resection and obtain improved survival rates with minimally invasive treatment. Laser imaging systems allow multiple modalities of endoscopic imaging by using white light laser, flexible spectral imaging color enhancement (FICE), blue laser imaging (BLI), and linked color imaging even at a distant view. However, the usefulness of these modalities has not been sufficiently reported regarding Barrett’s adenocarcinoma. Here, we report on a patient with three synchronous lesions followed by one metachronous lesion in a long segment with changes of Barrett’s esophagus, all diagnosed with this new laser endoscopic imaging system and enhanced by using FICE and/or BLI with high contrast compared with the surrounding mucosa. Laser endoscopic imaging may facilitate the detection of malignancies in patients with early Barrett’s adenocarcinoma.

Citations

Citations to this article as recorded by

Validation of simplified classification of magnifying endoscopy for diagnosis of Barrett's dysplasia with blue laser imaging
Tzu‐Haw Chen, Ro‐Ting Lin, Wen‐Lun Wang, Ching‐Tai Lee, Cheng‐Hao Tseng, Wen‐Hung Hsu, Wei‐Chen Tai, Hsiu‐Po Wang, Chi‐Yang Chang
Advances in Digestive Medicine.2022; 9(1): 10. CrossRef
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Félix Junquera, Sonia Fernández-Ananín, Carmen Balagué
Cirugía Española.2019; 97(8): 438. CrossRef
Blue Laser Imaging with a Small-Caliber Endoscope Facilitates Detection of Early Gastric Cancer
Haruo Takahashi, Yoshimasa Miura, Hiroyuki Osawa, Takahito Takezawa, Yuji Ino, Masahiro Okada, Alan Kawarai Lefor, Hironori Yamamoto
Clinical Endoscopy.2019; 52(3): 273. CrossRef
Therapeutic Options for Early Cancer of the Esophagogastric Junction
Félix Junquera, Sonia Fernández-Ananín, Carmen Balagué
Cirugía Española (English Edition).2019; 97(8): 438. CrossRef
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Barbara Braden, Evonne Jones-Morris
Digestive and Liver Disease.2018; 50(9): 871. CrossRef
Linked Color Imaging and Blue Laser Imaging for Upper Gastrointestinal Screening
Hiroyuki Osawa, Yoshimasa Miura, Takahito Takezawa, Yuji Ino, Tsevelnorov Khurelbaatar, Yuichi Sagara, Alan Kawarai Lefor, Hironori Yamamoto
Clinical Endoscopy.2018; 51(6): 513. CrossRef
Image assessment of Barrett’s esophagus using the simplified narrow band imaging classification
Masayuki Kato, Kenichi Goda, Yuichi Shimizu, Akira Dobashi, Masakazu Takahashi, Masahiro Ikegami, Tadakazu Shimoda, Mototsugu Kato, Prateek Sharma
Journal of Gastroenterology.2017; 52(4): 466. CrossRef
Animal experimental studies using small intestine endoscope
Jin-Hua Liu, Dan-Yang Liu, Li Wang, Li-Ping Han, Zhe-Yu Qi, Hai-Jun Ren, Yan Feng, Feng-Ming Luan, Liang-Tian Mi, Shu-Mei Shan
World Journal of Gastroenterology.2017; 23(20): 3684. CrossRef

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Utility of underwater endoscopic mucosal resection combined with a protruding anchor by saline injection for superficial non-ampullary duodenal tumors: Yoshie Nomoto, Satoshi Shinozaki, Yoshimasa Miura, Hiroyuki Osawa, Yuji Ino, Tomonori Yano, Nikolaos Lazaridis, Hironori Yamamoto; Received July 4, 2024 Accepted September 30, 2024 Published online November 13, 2024; DOI: https://doi.org/10.5946/ce.2024.181

Abstract PubReader ePub: Background
/Aims: Underwater endoscopic mucosal resection (UEMR) is the standard resection method for superficial non-ampullary duodenal tumors (SNADETs). We developed a novel UEMR technique that creates an anchor by protruding the distal fold with a saline injection (UEMR-A). The aim of this study was to clarify the usefulness of UEMR-A compared to conventional UEMR (UEMR-C).
Methods
This retrospective observational study included patients who underwent UEMR for SNADETs.
Results
A total of 141 patients were included and divided into UEMR-A (n=54) and UEMR-C (n=87) groups. Lesion resection was performed significantly more frequently by an expert endoscopist in the UEMR-C group compared to the UEMR-A group (p<0.001). The procedure time for UEMR-A was significantly shorter than that for UEMR-C (p=0.018), despite the additional time required for submucosal injection. The R0 resection rate was significantly higher in the UEMR-A group than in the UEMR-C group (p=0.004). The horizontal margins were significantly clearer in the UEMR-A group than in the UEMR-C group (p=0.018). Multivariate analysis revealed that the use of UEMR-A was the only significant positive factor for R0 resection.
Conclusions
The UEMR-A technique for SNADETs appears to improve R0 resection rates and reduce procedure times compared to the UEMR-C technique.

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