Higher detectability of gastric cancer after Helicobacter pylori eradication in texture and color enhancement imaging mode 2 in screening endoscopy

Author:

Kemmoto Yuichiro1ORCID,Ozawa Shun‐ichiro1,Sueki Ryota1,Furuya Keiichi1,Shirose Daimon1,Wakao Satoshi1,Shindo Kuniaki1,Nagata Atsushi2,Sato Tadashi1

Affiliation:

1. Department of Gastroenterology and Hepatology Japan Community Health Care Organization Yamanashi Hospital Yamanashi Japan

2. Health Management Center Japan Community Health Care Organization Yamanashi Hospital Health Screening Center Yamanashi Japan

Abstract

AbstractObjectivesThe utility of texture and color enhancement imaging (TXI) in detecting gastric cancer (GC) has been investigated. However, few reports exist on TXI mode2 (TXI2) used for detecting GC; this study investigated the efficacy of TXI2 in GC detection during screening endoscopy.MethodsThis study enrolled 13,440 participants with confirmed Helicobacter pylori (H. pylori) infection status who underwent screening endoscopy by 20 endoscopists in our health screening center. The participants were divided into two groups: one group was observed using white light imaging (WLI) only by 17 endoscopists (WLI group, 10,745 participants), and the other group was observed using TXI2 only by the other three endoscopists (TXI2 group, 2695 participants). We analyzed the detection rate and the characteristics of GC. In addition, considering the bias due to the diagnostic ability, we analyzed the subset of the WLI group where the participants were evaluated by the top three endoscopists based on their GC detection rate (Expert‐WLI group, 2792 participants) for comparison with the TXI2 group.ResultsFifty patients were diagnosed with GC. The GC detection rates were 0.68% and 0.71% in the Expert‐WLI and TXI2 groups, respectively. In patients who underwent screening endoscopy after H. pylori eradication, the detection rates of differentiated GC, L‐region lesions, and surface depressed‐type lesions were 0.52%, 0%, and 0.43% in the Expert‐WLI group and 1.36%, 0.78%, and 1.36% in the TXI2 group, respectively.ConclusionsIn screening endoscopy, the detectability of differentiated GC and L‐region lesions and surface depressed‐type lesions after H. pylori eradication was higher in TXI2.

Publisher

Wiley

Subject

Organic Chemistry,Biochemistry

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