Lasers in Medical Science

, Volume 33, Issue 8, pp 1757–1762 | Cite as

Ability of blue laser imaging with magnifying endoscopy for the diagnosis of gastric intestinal metaplasia

  • Honglei ChenEmail author
  • Yanan Liu
  • Yi Lu
  • Xutao Lin
  • Qiuning Wu
  • Jiacheng Sun
  • Chujun LiEmail author
Original Article


We aimed to determine the utility of blue laser imaging (BLI) with magnifying endoscopy (BLI-ME) for the prediction and diagnosis of gastric intestinal metaplasia (GIM). Participants, aged between 40 and 75 years, undergoing gastroscopy from January to April 2017 were included in this study. The ability of BLI-ME and white light endoscopy (WLE) to detect GIM was assessed by comparing the endoscopic findings with the histological findings. The correlation between the grades of light blue crest (LBC) appearance and histology grade of GIM was calculated. We included 100 participants in this study. GIM was diagnosed in 27 participants; 20 participants were detected by both BLI and WLE, four by BLI only, and three exclusively by random biopsies. The values of sensitivity, specificity, positive predictive values, and negative predictive values for detecting GIM were 34.9, 38.9, 25.4, and 57.1%, respectively, for WLE and 88.9, 96.7, 94.1, and 93.3%, respectively, for BLI-ME. The diagnostic accuracy for GIM was 43% for WLE and 94.0% for BLI-ME. A good correlation between the grades of LBC and the grades of GIM on histology was observed (P < 0.01). BLI-ME achieved a good diagnostic efficiency for detection of GIM. LBC seen on BLI-ME is a typical indicator of GIM.


Blue laser imaging White light endoscopy Magnifying endoscopy Intestinal metaplasia Detection 


Funding information

This study was supported by the National Key Clinical Discipline and Guangdong Institute of Gastroenterology. This study was also funded by the Guangdong province medical science and technology research fund project (grant number: A2017273). This funding supported the work on data collection, analysis, and interpretation and writing of the manuscript.

Compliance with ethical standards

Conflict of interest

Honglei Chen has received funding from Guangdong province medical science and technology research fund project (grant number: A2017273). For the remaining authors, none were declared.

Ethical approval

The study was approved by the Ethics Committee of the Sixth Affiliated Hospital, Sun Yat-sen University, and has been performed in accordance with the Declaration of Helsinki. The study was registered with Chinese Clinical Trial Registry (ChiCTR-DDD-17011381).

Informed consent

Informed consent was obtained from all individual participants included in the study.


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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Gastrointestinal Endoscopy, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, the Sixth Affiliated HospitalSun Yat-sen UniversityGuangzhouPeople’s Republic of China

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