Narrow-Band Imaging in the Diagnosis of Colorectal Mucosal Lesions: A Pilot Study

Machida, Hirohisa; Sano, Yasushi; Hamamoto, Yasuo; Muto, Manabu; Kozu, Takahiro; Tajiri, Hisao; Yoshida, Shigeaki

doi:10.1055/s-2004-826040

Cited by 483 publications

(389 citation statements)

References 7 publications

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“…ME-NBI visualizes the fine mucosal and its capillary patterns. The diagnostic performance of the ME-NBI has been demonstrated across a variety of gastrointestinal neoplasms [14,[16][17][18]. Our data indicates that ME-NBI allows to distinguish well the EGC lesion irrespective of H. pylori eradication status.…”

Section: Discussionmentioning

confidence: 58%

A Comparative Study of White Light Endoscopy, Chromoendoscopy and Magnifying Endoscopy with Narrow Band Imaging in the Diagnosis of Early Gastric Cancer after Helicobacter pylori Eradication

Horiguchi

Tahara

Kawamura

et al. 2017

JGLD

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Background & Aim: Early-stage gastric cancer (EGC) found after H. pylori eradication often has non-tumorous epithelium on the tumorous tissue and/or surface differentiation of tumors, which may confuse endoscopic and histologic diagnosis. We investigated the diagnostic reliability of EGC using conventional white light endoscopy (WLE), chromoendoscopy (CE) using indigo carmine, and magnifying endoscopy with narrow band imaging (ME-NBI) in patients with EGC with or without history of prior H. pylori eradication therapy.Methods: Diagnostic reliability of EGC by using the WLE, CE and ME-NBI was investigated in 71 EGC lesions diagnosed after successful H. pylori eradication (eradication group) and 115 EGC lesions with current H. pylori infection (control group).Results: Diagnostic reliability of EGC was lower in the eradication group than in the control group using all three modalities. In particular, the diagnostic accuracy of CE in the eradication group was especially lower compared to that of the control group (WLE: 74.6% vs. 86.1%, P=0.05; CE: 64.8% vs. 91.3%, P<0.0001; ME-NBI: 88.7% vs. 98.2%, P=0.01). The ME-NBI scored better in comparison with WLE and CE in the eradication group (both P<0.05). The indistinct EGC lesions in the eradicated group by using CE were associated with the presence of histological changes such as non-tumorous epithelium on the tumor and/or surface differentiation of tumors (P=0.005).Conclusions: It should be noted that the diagnostic reliability of EGC after H. pylori eradication becomes lower especially using CE. Indistinguishable cases using CE are associated with histological findings such as non-tumorous epithelium on the tumor and/or surface differentiation of tumors.Abbreviations: CE: chromoendoscopy; EGD: esophagogastroduodenoscopy; EGC: Early-stage gastric cancer; ESD: endoscopic submucosal dissection; H. pylori: Helicobacter pylori; ME-NBI: magnifying endoscopy with narrow band imaging; WLE: white light endoscopy.

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Section: Discussionmentioning

confidence: 58%

A Comparative Study of White Light Endoscopy, Chromoendoscopy and Magnifying Endoscopy with Narrow Band Imaging in the Diagnosis of Early Gastric Cancer after Helicobacter pylori Eradication

Horiguchi

Tahara

Kawamura

et al. 2017

JGLD

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“…Because of the importance of microcirculatory changes to the grading of colitis, tracers and image analysis techniques have been recently applied to the evaluation of human colitis (7,8). To examine the potential for microvideo colonoscopy to detect fluorescent plasma tracers in mice, we adapted fluorescence filters to an existing endoscopy system.…”

Section: Fluorescence Video Endoscopymentioning

confidence: 99%

Murine Microvideo Endoscopy of the Colonic Microcirculation

Ravnic

Konerding

Huss

et al. 2007

Journal of Surgical Research

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Natural orifice endoscopy in small animal models has been limited in the past by instrument size and optical performance. In this report, we investigate the feasibility of using a recently developed microvideo endoscopy system to evaluate the colon microcirculation. Using a murine model of acute colitis, microvideo endoscopy was useful in mapping the topography of inflammation as well as identifying relevant structures in the microcirculation. We conclude that natural orifice endoscopy is a useful method for the minimally invasive longitudinal assessment of the colonic mucosal microcirculation.

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“…Neoplastic vessels develop in the surface of tumor lesions, and thus NBI is very useful for observation of microvessels for qualitative diagnosis of tumors and non-tumor lesions (1,5,6,(8)(9)(10). In contrast, evaluation of the microvascular structure with conventional white light endoscopy is difficult.…”

Section: Appearance Of Nbi-enhanced Imagesmentioning

confidence: 99%

“…NBI is widely used in clinical practice for the gastrointestinal system, including the pharynx, esophagus, stomach and large intestine, and for regions such as the oro-pharynx, lung and urinary tract. This method has produced a remarkable improvement in qualitative diagnosis of the grade and depth of invasion of atypical lesions, and permits earlier lesion detection (1)(2)(3)(4). The NBI method is also referred to as 'optical biopsy', a visual diagnosis that needs no biopsy, and diagnostic criteria for various organs are being developed based on pattern classification of mucosal microvessels and microstructures (5,6).…”

Section: Introductionmentioning

confidence: 99%

Narrow band imaging in gynecology: A new diagnostic approach with improved visual identification (Review)

Kisu

Banno

Tsuji³

et al. 2011

Int J Oncol

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Abstract. Narrow band imaging (NBI) is a new endoscopic technique in which images of mucosal microstructures and capillary structures are enhanced by shifting the light spectrum to a narrow band. Image-enhanced gastrointestinal endoscopy using NBI has improved the qualitative diagnosis of the grade and depth of invasion of an atypical lesion. NBI is currently not commonly used in gynecological endoscopy, but has recently been applied in laparoscopy and hysteroscopy. The utility of NBI for diagnosis of endometrial lesions and endometriosis has also been shown. In gynecological endoscopy, NBI provides enhanced images of mucosal microstructures and capillary structures and improves visual identification of lesions. Therefore, image-enhanced observation using NBI is likely to be useful for improved detection of lesions in endoscopic diagnosis. However, this technique remains experimental so far, and no study has demonstrated improved clinical outcome using this technique. In this review, we discuss the utility and potential applications of NBI in clinical practice in gynecology.

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Narrow-Band Imaging in the Diagnosis of Colorectal Mucosal Lesions: A Pilot Study

Abstract: These results suggest that in the examination of colonic lesions the NBI system provides imaging features additional to those of both conventional endoscopy and chromoendoscopy. For distinguishing neoplasms from non-neoplastic lesions, NBI was equivalent to chromoendoscopy.

Cited by 483 publications

References 7 publications

A Comparative Study of White Light Endoscopy, Chromoendoscopy and Magnifying Endoscopy with Narrow Band Imaging in the Diagnosis of Early Gastric Cancer after Helicobacter pylori Eradication

A Comparative Study of White Light Endoscopy, Chromoendoscopy and Magnifying Endoscopy with Narrow Band Imaging in the Diagnosis of Early Gastric Cancer after Helicobacter pylori Eradication

Murine Microvideo Endoscopy of the Colonic Microcirculation

Narrow band imaging in gynecology: A new diagnostic approach with improved visual identification (Review)

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