Diagnosis of early gastric cancer using narrow band imaging and acetic acid

Matsuo, Katsuhiko; Takedatsu, Hidetoshi; Mukasa, Michita; Sumie, Hiroaki; Yoshida, Hikaru; Watanabe, Yasutomo; Akiba, Jun; Nakahara, K; Takahashi, Osamu; Torimura, Takuji

doi:10.3748/wjg.v21.i4.1268

Cited by 7 publications

(2 citation statements)

References 22 publications

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“…However, no studies have reported the difference between EGCs of the corpus and antrum under ME-NBI. The MV and MS features of EGC summarized in previous studies also cannot be used to distinguish between the different regions of antrum and corpus [13,[15][16][17][18]. We hypothesize that there may be different MV and MS patterns between EGCs of the corpus and antrum under ME-NBI.…”

Section: Introductionmentioning

confidence: 81%

Differences in the Microsurface and Microvascular Features between Early Gastric Cancer of Corpus and Antrum under Narrow Band Imaging Magnifying Endoscopy

Zhuang

Wang

Luo

et al. 2019

Preprint

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Background Microsurface structure (MS) and microvascular features (MV) of early gastric cancer (EGC) are associated with the histologic type, invasion depth and macroscopic shape of lesions. However, no studies have reported the differences in the MS and MV features between EGCs of antrum and corpus under magnifying endoscopy with narrow band imaging (ME-NBI).Methods This was a retrospective study including 116 patients with EGC. The characteristics of MS and MV pattern of EGC were evaluated in 2 group, antrum type and corpus type.Results According to the Sakaki's classi cation, the MS of EGCs presented as IV, V1 or VI typein in sequence, one level higher than the previous type in the degree of atypia.Tumor location and differentiated degree were identi ed as independent predictors for MS pattern. For the probability of at least one level higher, in the MS pattern, the corporal EGCs was 5.84 times as high as that of antral EGCs ( χ 2 =9.42, P=0.002, 95%CI 1.89-18.05), and undifferentiated-type lesions was 8.82 times as high as that of the differentiated-type lesions ( χ 2 =11.67, P=0.001, 95%CI 2. 53-30.76). No difference in the MV pattern was observed between antral EGCs and corporal EGCs (P=0.7), while the microvascular pattern and microsurface pattern (VS pattern, FNP, ILL-1, ILL-2 and CSP) were signi cantly different between those 2 groups (P=0.001).Conclusions There are signi cant differences in the MS and VS pattern of EGC between antrum and corpus types. The antral EGC is less obvious than the corporal EGC, therefore, it is more likely to be missed in clinical gastroscopy.

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Section: Introductionmentioning

confidence: 81%

Differences in the Microsurface and Microvascular Features between Early Gastric Cancer of Corpus and Antrum under Narrow Band Imaging Magnifying Endoscopy

Zhuang

Wang

Luo

et al. 2019

Preprint

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“…A study using iScan for the detection of pre-cancerous or early cancerous lesions within the stomach found that, although imaging quality was improved, there was little additional diagnostic benefit 4 . However, recently Matsuo et al found that using magnifying endoscopy with NBI (enhanced by the application of acetic acid) aided the diagnosis of early gastric cancers 7 . Similarly, a study by Dohi et al found that using BLI increased the detection of early gastric cancer with an accuracy, sensitivity, and specificity of 90.7, 84.6 and 92.4%, respectively, compared to 72.9, 30.8 and 84.8% using high-definition white light alone 8 .…”

Section: Advances In Digital Imagingmentioning

confidence: 99%

Advances in upper gastrointestinal endoscopy

Graham

Banks

2015

F1000Res

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The rapidly moving technological advances in gastrointestinal endoscopy have enhanced an endoscopist’s ability to diagnose and treat lesions within the gastrointestinal tract. The improvement in image quality created by the advent of high-definition and magnification endoscopy, alongside image enhancement, produces images of superb quality and detail that empower the endoscopist to identify important lesions that have previously been undetectable. Additionally, we are now seeing technologies emerge, such as optical coherence tomography and confocal laser endomicroscopy, that allow the endoscopist to visualize individual cells on a microscopic level and provide a real time, in vivo histological assessment. Within this article we discuss these technologies, as well as some of the results from their early use in clinical studies.

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