Diagnosis of depressed‐type early gastric cancer using small‐caliber endoscopy with flexible spectral imaging color enhancement

Osawa, Hiroyuki; Yamamoto, Hironori; Mıura, Yoshimasa; Ajibe, Hironari; Shinhata, Hakuei; Yoshizawa, Mitsuyo; Sunada, Keijiro; Toma, Sachiko; Satoh, Kiichi; Sugano, Kentaro

doi:10.1111/j.1443-1661.2011.01224.x

Cited by 34 publications

(22 citation statements)

References 18 publications

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“…204 To facilitate early detection, high-resolution endoscopy equipped with image-enhanced modalities such as narrow band imaging (NBI), flexible spectral imaging colour enhancement and blue laser imaging (BLI) have recently been introduced into clinical practice in Japan. [205][206][207] As better performance of image-enhanced endoscopy (IEE) has been documented, not only for detecting early gastric cancer, but also for Barrett's lesions, adoption of IEE for routine upper GI endoscopic examination is now highly recommended. This facilitates early detection of gastric cancer, which can be curable in the early stages (figure 9) with minimally invasive therapy.…”

Section: Gastric Cancermentioning

confidence: 99%

The stomach in health and disease

Hunt

Camilleri

Crowe

et al. 2015

Gut

295

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The stomach is traditionally regarded as a hollow muscular sac that initiates the second phase of digestion. Yet this simple view ignores the fact that it is the most sophisticated endocrine organ with unique physiology, biochemistry, immunology and microbiology. All ingested materials, including our nutrition, have to negotiate this organ first, and as such, the stomach is arguably the most important segment within the GI tract. The unique biological function of gastric acid secretion not only initiates the digestive process but also acts as a first line of defence against food-borne microbes. Normal gastric physiology and morphology may be disrupted by Helicobacter pylori infection, the most common chronic bacterial infection in the world and the aetiological agent for most peptic ulcers and gastric cancer. In this state-of-the-art review, the most relevant new aspects of the stomach in health and disease are addressed. Topics include gastric physiology and the role of gastric dysmotility in dyspepsia and gastroparesis; the stomach in appetite control and obesity; there is an update on the immunology of the stomach and the emerging field of the gastric microbiome. H. pylori-induced gastritis and its associated diseases including peptic ulcers and gastric cancer are addressed together with advances in diagnosis. The conclusions provide a future approach to gastric diseases underpinned by the concept that a healthy stomach is the gateway to a healthy and balanced host. This philosophy should reinforce any public health efforts designed to eradicate major gastric diseases, including stomach cancer.

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Section: Gastric Cancermentioning

confidence: 99%

The stomach in health and disease

Hunt

Camilleri

Crowe

et al. 2015

Gut

295

206

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“…However, it is often difficult to detect gastric superficial adenocarcinomas using conventional endoscopy with white-light imaging (C-WLI). Many clinical studies have reported on the diagnostic performance of EGC by imageenhanced endoscopy (IEE) techniques such as narrow-band imaging (NBI) [2][3][4][5][6][7][8][9] or flexible spectral imaging color enhancement (FICE) [10][11][12]. In particular, magnifying endoscopy with NBI (M-NBI) is a powerful optical IEE that has demonstrated accurate real-time diagnostic performance in EGC compared with C-WLI [5,7].…”

Section: Introductionmentioning

confidence: 99%

Diagnostic ability of magnifying endoscopy with blue laser imaging for early gastric cancer: a prospective study

et al. 2016

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Background Blue laser imaging (BLI) is a new image-enhanced endoscopy technique that utilizes a laser light source developed for narrow-band light observation. The aim of this study was to evaluate the usefulness of BLI for the diagnosis of early gastric cancer. Methods This single center prospective study analyzed 530 patients. The patients were examined with both conventional endoscopy with white-light imaging (C-WLI) and magnifying endoscopy with BLI (M-BLI) at Kyoto Prefectural University of Medicine between November 2012 and March 2015. The diagnostic criteria for gastric cancer using M-BLI included an irregular microvascular pattern and/or irregular microsurface pattern, with a demarcation line according to the vessel plus surface classification system. Biopsies of the lesions were taken after C-WLI and M-BLI observation. The primary end point of this study was to compare the diagnostic performance between C-WLI and M-BLI. Results We analyzed 127 detected lesions (32 cancers and 95 non-cancers). The accuracy, sensitivity, and specificity of M-BLI diagnoses were 92.1, 93.8, and 91.6 %, respectively. On the other hand, the accuracy, sensitivity, and specificity of C-WLI diagnoses were 71.7, 46.9, and 80.0 %, respectively.Conclusions M-BLI had improved diagnostic performance for early gastric cancer compared with C-WLI. These results suggested that the diagnostic effectiveness of M-BLI is similar to that of magnifying endoscopy with narrow-band imaging (M-NBI).

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“…However, it is often difficult to diagnose superficial EGC using C-WLI. Image-enhanced endoscopy techniques such as narrow-band imaging (NBI) [1], autofluorescence imaging [2], flexible spectral imaging color enhancement [3,4,5], and i-scan [6] have found wide applications for endoscopic diagnosis of EGC. In particular, magnifying NBI (M-NBI) is reportedly superior to C-WLI for the accurate diagnosis of EGC [7,8,9,10,11,12,13,14].…”

Section: Introductionmentioning

confidence: 99%

Magnifying Blue Laser Imaging versus Magnifying Narrow-Band Imaging for the Diagnosis of Early Gastric Cancer: A Prospective, Multicenter, Comparative Study

et al. 2017

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Background/Aims: The diagnostic efficacy of magnifying blue laser imaging (M-BLI) and M-BLI in bright mode (M-BLI-bright) in the identification of early gastric cancer (EGC) was evaluated for comparison to that of magnifying narrow-band imaging (M-NBI). Methods: This prospective, multicenter study evaluated 114 gastric lesions examined using M-BLI, M-BLI-bright, and M-NBI between May 2012 and November 2012; 104 EGCs were evaluated by each modality. The vessel plus surface classification system was used to evaluate the demarcation line (DL), microvascular pattern (MVP), and microsurface pattern (MSP). Results: M-BLI, M-BLI-bright, and M-NBI revealed a DL for 96.1, 98.1, and 98.1% and irregular MVP for 95.1, 95.1, and 96.2% of lesions, respectively, with no significant difference. Irregular MSP was observed by M-BLI, M-BLI-bright, and M-NBI in 97.1, 90.4, and 78.8% of lesions, respectively, with significant differences (p < 0.001). The proportion of moderately differentiated adenocarcinoma with irregular MSP on M-BLI and absent MSP on M-NBI was significantly higher than that with irregular MSP on M-BLI and M-NBI (35.0 and 9.9%, respectively; p = 0.002). Conclusion: M-BLI and M-BLI-bright provided excellent visualization of microstructures and microvessels similar to M-NBI. Irregular MSP in a moderately differentiated adenocarcinoma might be frequently visualized using M-BLI and M-BLI-bright compared with using M-NBI.

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Diagnosis of depressed‐type early gastric cancer using small‐caliber endoscopy with flexible spectral imaging color enhancement

Abstract: Small-caliber endoscopy with the FICE system provides better color contrast of depressed-type early gastric cancers than conventional small-caliber endoscopy, and the FICE system may facilitate the diagnosis of this type of cancer as a new endoscopic modality.

Cited by 34 publications

References 18 publications

The stomach in health and disease

The stomach in health and disease

Diagnostic ability of magnifying endoscopy with blue laser imaging for early gastric cancer: a prospective study

Magnifying Blue Laser Imaging versus Magnifying Narrow-Band Imaging for the Diagnosis of Early Gastric Cancer: A Prospective, Multicenter, Comparative Study

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