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Suzuki S, Monno Y, Arai R, Miyaoka M, Toya Y, Esaki M, Wada T, Hatta W, Takasu A, Nagao S, Ishibashi F, Minato Y, Konda K, Dohmen T, Miki K, Okutomi M. Diagnostic performance of deep-learning-based virtual chromoendoscopy in gastric neoplasms. Gastric Cancer 2024; 27:539-547. [PMID: 38240891 DOI: 10.1007/s10120-024-01469-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 01/09/2024] [Indexed: 04/15/2024]
Abstract
BACKGROUNDS Cycle-consistent generative adversarial network (CycleGAN) is a deep neural network model that performs image-to-image translations. We generated virtual indigo carmine (IC) chromoendoscopy images of gastric neoplasms using CycleGAN and compared their diagnostic performance with that of white light endoscopy (WLE). METHODS WLE and IC images of 176 patients with gastric neoplasms who underwent endoscopic resection were obtained. We used 1,633 images (911 WLE and 722 IC) of 146 cases in the training dataset to develop virtual IC images using CycleGAN. The remaining 30 WLE images were translated into 30 virtual IC images using the trained CycleGAN and used for validation. The lesion borders were evaluated by 118 endoscopists from 22 institutions using the 60 paired virtual IC and WLE images. The lesion area concordance rate and successful whole-lesion diagnosis were compared. RESULTS The lesion area concordance rate based on the pathological diagnosis in virtual IC was lower than in WLE (44.1% vs. 48.5%, p < 0.01). The successful whole-lesion diagnosis was higher in the virtual IC than in WLE images; however, the difference was insignificant (28.2% vs. 26.4%, p = 0.11). Conversely, subgroup analyses revealed a significantly higher diagnosis in virtual IC than in WLE for depressed morphology (41.9% vs. 36.9%, p = 0.02), differentiated histology (27.6% vs. 24.8%, p = 0.02), smaller lesion size (42.3% vs. 38.3%, p = 0.01), and assessed by expert endoscopists (27.3% vs. 23.6%, p = 0.03). CONCLUSIONS The diagnostic ability of virtual IC was higher for some lesions, but not completely superior to that of WLE. Adjustments are required to improve the imaging system's performance.
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Affiliation(s)
- Sho Suzuki
- Department of Gastroenterology, International University of Health and Welfare Ichikawa Hospital, 6-1-14, Konodai, Ichikawa-Shi, Chiba, 272-0827, Japan.
| | - Yusuke Monno
- Department of Systems and Control Engineering, School of Engineering, Tokyo Institute of Technology, Tokyo, Japan
| | - Ryo Arai
- Department of Systems and Control Engineering, School of Engineering, Tokyo Institute of Technology, Tokyo, Japan
| | - Masaki Miyaoka
- Department of Endoscopy, Fukuoka University Chikushi Hospital, Chikushino, Japan
| | - Yosuke Toya
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, Iwate Medical University, Yahaba, Japan
| | - Mitsuru Esaki
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukouka, Japan
- Department of Gastroenterology, Harasanshin Hospital, Fukuoka, Japan
| | - Takuya Wada
- Department of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Japan
| | - Waku Hatta
- Division of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ayaka Takasu
- Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Shigeaki Nagao
- Medical Examination Center, Showa General Hospital, Tokyo, Japan
| | - Fumiaki Ishibashi
- Department of Gastroenterology, International University of Health and Welfare Ichikawa Hospital, 6-1-14, Konodai, Ichikawa-Shi, Chiba, 272-0827, Japan
- Endoscopy Center, Koganei Tsurukame Clinic, Tokyo, Japan
| | - Yohei Minato
- Department of Gastrointestinal Endoscopy, NTT Medical Center Tokyo, Tokyo, Japan
| | - Kenichi Konda
- Division of Gastroenterology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Takahiro Dohmen
- Department of Gastroenterology, Yuri Kumiai General Hospital, Yurihonjo, Japan
| | - Kenji Miki
- Department of Internal Medicine, Tsujinaka Hospital Kashiwanoha, Kashiwa, Japan
| | - Masatoshi Okutomi
- Department of Systems and Control Engineering, School of Engineering, Tokyo Institute of Technology, Tokyo, Japan
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Zhang Y, Wang JZ, Bai X, Zhang PL, Guo Q. Clinical usefulness of linked color imaging in identifying Helicobacter pylori infection: A systematic review and meta-analysis. World J Gastrointest Endosc 2023; 15:735-744. [PMID: 38187911 PMCID: PMC10768039 DOI: 10.4253/wjge.v15.i12.735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/31/2023] [Accepted: 11/24/2023] [Indexed: 12/15/2023] Open
Abstract
BACKGROUND Accurate diagnosis of Helicobacter pylori (H. pylori) infection status is a crucial premise for eradication therapy, as well as evaluation of risk for gastric cancer. Recent progress on imaging enhancement endoscopy (IEE) made it possible to not only detect precancerous lesions and early gastrointestinal cancers but also to predict H. pylori infection in real time. As a novel IEE modality, linked color imaging (LCI) has exhibited its value on diagnosis of lesions of gastric mucosa through emphasizing minor differences of color tone.
AIM To compare the efficacy of LCI for H. pylori active infection vs conventional white light imaging (WLI).
METHODS PubMed, Embase, Embase and Cochrane Library were searched up to the end of April 11, 2022. The random-effects model was adopted to calculate the diagnostic efficacy of LCI and WLI. The calculation of sensitivity, specificity, and likelihood ratios were performed; symmetric receiver operator characteristic (SROC) curves and the areas under the SROC curves were computed. Quality of the included studies was chosen to assess using the quality assessment of diagnostic accuracy studies-2 tool.
RESULTS Seven original studies were included in this study. The pooled sensitivity, specificity, positive likelihood rate, and negative likelihood rate of LCI for the diagnosis of H. pylori infection of gastric mucosa were 0.85 [95% confidence interval (CI): 0.76-0.92], 0.82 (95%CI: 0.78-0.85), 4.71 (95%CI: 3.7-5.9), and 0.18 (95%CI: 0.10-0.31) respectively, with diagnostic odds ratio = 26 (95%CI: 13-52), SROC = 0.87 (95%CI: 0.84-0.90), which showed superiority of diagnostic efficacy compared to WLI.
CONCLUSION Our results showed LCI can improve efficacy of diagnosis on H. pylori infection, which represents a useful endoscopic evaluation modality for clinical practice.
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Affiliation(s)
- Yu Zhang
- Department of Gastroenterology, The First People’s Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and Technology, Kunming 650000, Yunnan Province, China
- Yunnan Digestive Endoscopy Clinical Medical Center, Kunming 650000, Yunnan Province, China
| | - Jing-Zhai Wang
- Department of Gastroenterology, The First People’s Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and Technology, Kunming 650000, Yunnan Province, China
- Yunnan Digestive Endoscopy Clinical Medical Center, Kunming 650000, Yunnan Province, China
| | - Xuan Bai
- Department of Gastroenterology, The First People’s Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and Technology, Kunming 650000, Yunnan Province, China
- Yunnan Digestive Endoscopy Clinical Medical Center, Kunming 650000, Yunnan Province, China
| | - Peng-Li Zhang
- Department of Gastroenterology, The First People’s Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and Technology, Kunming 650000, Yunnan Province, China
- Yunnan Digestive Endoscopy Clinical Medical Center, Kunming 650000, Yunnan Province, China
| | - Qiang Guo
- Department of Gastroenterology, The First People’s Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and Technology, Kunming 650000, Yunnan Province, China
- Yunnan Digestive Endoscopy Clinical Medical Center, Kunming 650000, Yunnan Province, China
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Ristea ME, Zarnescu O. Indigo Carmine: Between Necessity and Concern. J Xenobiot 2023; 13:509-528. [PMID: 37754845 PMCID: PMC10532910 DOI: 10.3390/jox13030033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/08/2023] [Accepted: 09/16/2023] [Indexed: 09/28/2023] Open
Abstract
Dyes, such as indigo carmine, have become indispensable to modern life, being widely used in the food, textile, pharmaceutical, medicine, and cosmetic industry. Although indigo carmine is considered toxic and has many adverse effects, it is found in many foods, and the maximum permitted level is 500 mg/kg. Indigo carmine is one of the most used dyes in the textile industry, especially for dyeing denim, and it is also used in medicine due to its impressive applicability in diagnostic methods and surgical procedures, such as in gynecological and urological surgeries and microsurgery. It is reported that indigo carmine is toxic for humans and can cause various pathologies, such as hypertension, hypotension, skin irritations, or gastrointestinal disorders. In this review, we discuss the structure and properties of indigo carmine; its use in various industries and medicine; the adverse effects of its ingestion, injection, or skin contact; the effects on environmental pollution; and its toxicity testing. For this review, 147 studies were considered relevant. Most of the cited articles were those about environmental pollution with indigo carmine (51), uses of indigo carmine in medicine (45), and indigo carmine as a food additive (17).
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Affiliation(s)
| | - Otilia Zarnescu
- Faculty of Biology, University of Bucharest, Splaiul Independentei 91-95, R-050095 Bucharest, Romania;
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Ren Y, DeRose K, Li L, Gallucci JC, Yu J, Douglas Kinghorn A. Vincamine, from an antioxidant and a cerebral vasodilator to its anticancer potential. Bioorg Med Chem 2023; 92:117439. [PMID: 37579526 PMCID: PMC10530545 DOI: 10.1016/j.bmc.2023.117439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/06/2023] [Accepted: 08/07/2023] [Indexed: 08/16/2023]
Abstract
Vincamine is a naturally occurring indole alkaloid showing antioxidant activity and has been used clinically for the prevention and treatment of cerebrovascular disorders and insufficiencies. It has been well documented that antioxidants may contribute to cancer treatment, and thus, vincamine has been investigated recently for its potential antitumor activity. Vincamine was found to show cancer cell cytotoxicity and to modulate several important proteins involved in tumor growth, including acetylcholinesterase (AChE), mitogen-activated protein kinase (MAPK), nuclear factor-κB (NF-κB), nuclear factor erythroid 2-related factor 2 (Nrf2), and T-box 3 (TBX3). Several bisindole alkaloids, including vinblastine and vincristine and their synthetic derivatives, vindesine, vinflunine, and vinorelbine, have been used as clinically effective cancer chemotherapeutic agents. In the present review, the discovery and development of vincamine as a useful therapeutic agent and its antioxidant and antitumor activity are summarized, with its antioxidant-related mechanisms of anticancer potential being described. Also, discussed herein are the design of the potential vincamine-based oncolytic agents, which could contribute to the discovery of further new agents for cancer treatment.
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Affiliation(s)
- Yulin Ren
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States.
| | - Kevin DeRose
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - Leyan Li
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - Judith C Gallucci
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - Jianhua Yu
- City of Hope National Medical Center, Duarte, CA 91010, United States
| | - A Douglas Kinghorn
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States.
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Linked Color Imaging for Stomach. Diagnostics (Basel) 2023; 13:diagnostics13030467. [PMID: 36766572 PMCID: PMC9914129 DOI: 10.3390/diagnostics13030467] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 01/19/2023] [Accepted: 01/24/2023] [Indexed: 02/01/2023] Open
Abstract
Image-enhanced endoscopy (IEE) plays an important role in the detection and further examination of gastritis and early gastric cancer (EGC). Linked color imaging (LCI) is also useful for detecting and evaluating gastritis, gastric intestinal metaplasia as a pre-cancerous lesion, and EGC. LCI provides a clear excellent endoscopic view of the atrophic border and the demarcation line under various conditions of gastritis. We could recognize gastritis as the lesions of the diffuse redness to purple color area with LCI. On the other hand, EGCs are recognized as the lesions of the orange-red, orange, or orange-white color area in the lesion of the purple color area, which is the surround atrophic mucosa with LCI. With further prospective randomized studies, we will be able to evaluate the diagnosis ability for EGC by IEE, and it will be necessary to evaluate the role of WLI/IEE and the additional effects of the diagnostic ability by adding IEE to WLI in future.
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Yashima K, Onoyama T, Kurumi H, Takeda Y, Yoshida A, Kawaguchi K, Yamaguchi N, Isomoto H. Current status and future perspective of linked color imaging for gastric cancer screening: a literature review. J Gastroenterol 2023; 58:1-13. [PMID: 36287268 PMCID: PMC9825522 DOI: 10.1007/s00535-022-01934-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/14/2022] [Indexed: 02/04/2023]
Abstract
Screening endoscopy has advanced to facilitate improvements in the detection and prognosis of gastric cancer. However, most early gastric cancers (EGCs) have subtle morphological or color features that are difficult to detect by white-light imaging (WLI); thus, even well-trained endoscopists can miss EGC when using this conventional endoscopic approach. This review summarizes the current and future status of linked color imaging (LCI), a new image-enhancing endoscopy (IEE) method, for gastric screening. LCI has been shown to produce bright images even at a distant view and provide excellent visibility of gastric cancer due to high color contrast relative to the surrounding tissue. LCI delineates EGC as orange-red and intestinal metaplasia as purple, regardless of a history of Helicobacter pylori (Hp) eradication, and contributes to the detection of superficial EGC. Moreover, LCI assists in the determination of Hp infection status, which is closely related to the risk of developing gastric cancer. Transnasal endoscopy (ultra-thin) using LCI is also useful for identifying gastric neoplastic lesions. Recently, several prospective studies have demonstrated that LCI has a higher detection ratio for gastric cancer than WLI. We believe that LCI should be used in routine upper gastrointestinal endoscopies.
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Affiliation(s)
- Kazuo Yashima
- Division of Gastroenterology and Nephrology, Faculty of Medicine, Tottori University, 36-1 Nishicho, Yonago, 683-8504, Japan.
| | - Takumi Onoyama
- Division of Gastroenterology and Nephrology, Faculty of Medicine, Tottori University, 36-1 Nishicho, Yonago, 683-8504, Japan
| | - Hiroki Kurumi
- Division of Gastroenterology and Nephrology, Faculty of Medicine, Tottori University, 36-1 Nishicho, Yonago, 683-8504, Japan
| | - Yohei Takeda
- Division of Gastroenterology and Nephrology, Faculty of Medicine, Tottori University, 36-1 Nishicho, Yonago, 683-8504, Japan
| | - Akira Yoshida
- Division of Gastroenterology and Nephrology, Faculty of Medicine, Tottori University, 36-1 Nishicho, Yonago, 683-8504, Japan
| | - Koichiro Kawaguchi
- Division of Gastroenterology and Nephrology, Faculty of Medicine, Tottori University, 36-1 Nishicho, Yonago, 683-8504, Japan
| | - Naoyuki Yamaguchi
- Department of Endoscopy, Nagasaki University Hospital, Nagasaki, Japan
| | - Hajime Isomoto
- Division of Gastroenterology and Nephrology, Faculty of Medicine, Tottori University, 36-1 Nishicho, Yonago, 683-8504, Japan
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Fockens K, de Groof J, van der Putten J, Khurelbaatar T, Fukuda H, Takezawa T, Miura Y, Osawa H, Yamamoto H, Bergman J. Linked color imaging improves identification of early gastric cancer lesions by expert and non-expert endoscopists. Surg Endosc 2022; 36:8316-8325. [PMID: 35508665 PMCID: PMC9613584 DOI: 10.1007/s00464-022-09280-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 04/16/2022] [Indexed: 01/06/2023]
Abstract
BACKGROUND AND AIMS Early gastric cancer (EGC) lesions are often subtle and endoscopically poorly visible. The aim of this study is to evaluate the additive effect of linked color imaging (LCI) next to white-light endoscopy (WLE) for identification of EGC, when assessed by expert and non-expert endoscopists. METHODS Forty EGC cases were visualized in corresponding WLE and LCI images. Endoscopists evaluated the cases in 3 assessment phases: Phase 1: WLE images only; Phase 2: LCI images only; Phase 3: WLE and LCI images side-to-side. First, 3 expert endoscopists delineated all cases. A high level of agreement between the expert delineations corresponded with a high AND/OR ratio. Subsequently, 62 non-experts indicated their preferred biopsy location. Outcomes of the study are as follows: (1) difference in expert AND/OR ratio; (2) accuracy of biopsy placement by non-expert endoscopists; and (3) preference of imaging modality by non-expert endoscopists. RESULTS Quantitative agreement between experts increased significantly when LCI was available (0.58 vs. 0.46, p = 0.007). This increase was more apparent for the more challenging cases (0.21 vs. 0.47, p < 0.001). Non-experts placed the biopsy mark more accurately with LCI (82.3% vs. 87.2%, p < 0.001). Again this increase was more profound for the more challenging cases (70.4% vs. 83.4%, p < 0.001). Non-experts indicated to prefer LCI over WLE. CONCLUSION The addition of LCI next to WLE improves visualization of EGC. Experts reach higher consensus on discrimination between neoplasia and inflammation when using LCI. Non-experts improve their targeted biopsy placement with the use of LCI. LCI therefore appears to be a useful tool for identification of EGC.
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Affiliation(s)
- Kiki Fockens
- Department of Gastroenterology and Hepatology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, The Netherlands
| | - Jeroen de Groof
- Department of Gastroenterology and Hepatology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, The Netherlands
| | - Joost van der Putten
- Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Tsevelnorov Khurelbaatar
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Hisashi Fukuda
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Takahito Takezawa
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Yoshimasa Miura
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Hiroyuki Osawa
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Hironori Yamamoto
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Jacques Bergman
- Department of Gastroenterology and Hepatology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.
- Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, The Netherlands.
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Hereditary Diffuse Gastric Cancer: Molecular Genetics, Biological Mechanisms and Current Therapeutic Approaches. Int J Mol Sci 2022; 23:ijms23147821. [PMID: 35887173 PMCID: PMC9319245 DOI: 10.3390/ijms23147821] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 07/01/2022] [Accepted: 07/06/2022] [Indexed: 12/14/2022] Open
Abstract
Hereditary diffuse gastric cancer is an autosomal dominant syndrome characterized by a high prevalence of diffuse gastric cancer and lobular breast cancer. It is caused by inactivating mutations in the tumor suppressor gene CDH1. Genetic testing technologies have become more efficient over the years, also enabling the discovery of other susceptibility genes for gastric cancer, such as CTNNA1 among the most important genes. The diagnosis of pathogenic variant carriers with an increased risk of developing gastric cancer is a selection process involving a multidisciplinary team. To achieve optimal long-term results, it requires shared decision-making in risk management. In this review, we present a synopsis of the molecular changes and current therapeutic approaches in HDGC based on the current literature.
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Khurelbaatar T, Miura Y, Osawa H, Nomoto Y, Tokoro S, Tsunoda M, Sekiguchi H, Kobayashi T, Funayama Y, Nagayama M, Takezawa T, Mieno M, Ueno T, Fukuda H, Iwashita C, Takahashi H, Ino Y, Kawarai Lefor A, Yamamoto H. Usefulness of linked color imaging for the detection of obscure early gastric cancer: Multivariate analysis of 508 lesions. Dig Endosc 2022; 34:1012-1020. [PMID: 34942042 DOI: 10.1111/den.14221] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/17/2021] [Accepted: 12/20/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVES Early gastric cancers (EGCs) of the elevated type or with submucosal invasion are easily found by routine endoscopy. However, most early cancers are challenging to detect because of subtle morphological or color differences from surrounding atrophic mucosa and intestinal metaplasia. Linked color imaging (LCI) enhances mucosal color difference, making it easier to detect EGCs. The aim of this study is to clarify the advantages and possible disadvantages of LCI for screening for obscure EGC. METHODS A total of 665 malignant gastric lesions resected using endoscopic submucosal dissection between January 2015 and April 2018 were retrospectively reviewed. Obviously detectable lesions were not included in the main analysis when determining the target lesion. White light imaging (WLI)/LCI images of 508 endoscopically obscure malignant lesions were included in the final analysis and evaluated by three non-expert and three expert endoscopists using visibility scores for detection and extent. RESULTS The detection visibility scores using LCI were significantly higher than those using WLI regardless of lesion characteristics including location, size, histological type, depth of invasion, and Helicobacter pylori status. The detection score improved in 46.4% cases and deteriorated in 4.9% when the modality changed from WLI to LCI. A mixed-effects multivariate logistic regression analysis showed that use of LCI (odds ratio [OR] 2.57), elevated type (OR 1.92), invasion to submucosa (OR 2.18) were significantly associated with improved visibility of EGC. CONCLUSIONS Linked color imaging significantly improves visibility of EGC regardless of differences in lesion morphology, histology, location, depth of invasion, and H. pylori status compared to conventional WLI.
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Affiliation(s)
- Tsevelnorov Khurelbaatar
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan.,Mongolia-Japan Hospital, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
| | - Yoshimasa Miura
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Hiroyuki Osawa
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Yoshie Nomoto
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Shinnosuke Tokoro
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Masato Tsunoda
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Hiromi Sekiguchi
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Takuma Kobayashi
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Yohei Funayama
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Manabu Nagayama
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Takahito Takezawa
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Makiko Mieno
- Department of Medical Informatics, Center for Information, Jichi Medical University, Tochigi, Japan
| | - Takashi Ueno
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Hisashi Fukuda
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Chihiro Iwashita
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Haruo Takahashi
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Yuji Ino
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | | | - Hironori Yamamoto
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
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Mărginean CO, Meliț LE, Săsăran MO. Traditional and Modern Diagnostic Approaches in Diagnosing Pediatric Helicobacter pylori Infection. CHILDREN 2022; 9:children9070994. [PMID: 35883980 PMCID: PMC9316053 DOI: 10.3390/children9070994] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 06/24/2022] [Accepted: 06/29/2022] [Indexed: 01/10/2023]
Abstract
Helicobacter pylori (H. pylori) is the most common bacterial infection worldwide, is usually acquired during childhood and is related to gastric carcinogenesis during adulthood. Therefore, its early proper diagnosis and subsequent successful eradication represent the cornerstones of gastric cancer prevention. The aim of this narrative review was to assess traditional and modern diagnostic methods in terms of H. pylori diagnosis. Several invasive and non-invasive methods were described, each with its pros and cons. The invasive diagnostic methods comprise endoscopy with biopsy, rapid urease tests, histopathological exams, cultures and biopsy-based molecular tests. Among these, probably the most available, accurate and cost-effective test remains histology, albeit molecular tests definitely remain the most accurate despite their high costs. The non-invasive tests consist of urea breath tests, serology, stool antigens and non-invasive molecular tests. Urea breath tests and stool antigens are the most useful in clinical practice both for the diagnosis of H. pylori infection and for monitoring the eradication of this infection after therapy. The challenges related to accurate diagnosis lead to a choice that must be based on H. pylori virulence, environmental factors and host peculiarities.
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Affiliation(s)
- Cristina Oana Mărginean
- Department of Pediatrics I, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, Gheorghe Marinescu Street No. 38, 540136 Targu Mures, Romania;
| | - Lorena Elena Meliț
- Department of Pediatrics I, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, Gheorghe Marinescu Street No. 38, 540136 Targu Mures, Romania;
- Correspondence:
| | - Maria Oana Săsăran
- Department of Pediatrics III, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, Gheorghe Marinescu Street No. 38, 540136 Targu Mures, Romania;
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Esaki M, Minoda Y, Ihara E. In Living Color: Linked Color Imaging for the Detection of Early Gastric Cancer. Dig Dis Sci 2022; 67:1922-1924. [PMID: 34463885 DOI: 10.1007/s10620-021-07235-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/18/2021] [Indexed: 01/06/2023]
Affiliation(s)
- Mitsuru Esaki
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan. .,Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, 1-6 Kanda-Surugadai, Chiyoda-ku, Tokyo, 102-0062, Japan.
| | - Yosuke Minoda
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Eikichi Ihara
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.,Department of Gastroenterology and Metabolism, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
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El-Nakeep S, El-Nakeep M. Artificial intelligence for cancer detection in upper gastrointestinal endoscopy, current status, and future aspirations. Artif Intell Gastroenterol 2021; 2:124-132. [DOI: 10.35712/aig.v2.i5.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 06/26/2021] [Accepted: 09/02/2021] [Indexed: 02/06/2023] Open
Abstract
This minireview discusses the benefits and pitfalls of machine learning, and artificial intelligence in upper gastrointestinal endoscopy for the detection and characterization of neoplasms. We have reviewed the literature for relevant publications on the topic using PubMed, IEEE, Science Direct, and Google Scholar databases. We discussed the phases of machine learning and the importance of advanced imaging techniques in upper gastrointestinal endoscopy and its association with artificial intelligence.
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Affiliation(s)
- Sarah El-Nakeep
- Gastroenterology and Hepatology Unit, Internal Medicine Department, Faculty of Medicine, AinShams University, Cairo 11591, Egypt
| | - Mohamed El-Nakeep
- Master of Science in Electrical Engineering "Electronics and Communications", Electronics and Electrical Engineering Department, Faculty of Engineering, Ain Shams University, Cairo 11736, Egypt
- Bachelor of Science in Electronics and Electrical Communications, Electronics and Communications and Computers Department, Faculty of Engineering, Helwan University, Cairo 11736, Egypt
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