Comparison of LED and LASER Colonoscopy About Linked Color Imaging and Blue Laser/Light Imaging of Colorectal Tumors in a Multinational Study

Yoshida N 1 , Draganov PV 2 , John S 3 , Neumann H 4 , Rani RA 5 , Hsu WH 6 Show all authors , Fernandopulle N 7 , Siah KTH 8 , Morgenstern R 9 , Tomita Y 10 , Inoue K 10 , Dohi O 10 , Hirose R 10 , Itoh Y 10 , Murakami T 11 , Inagaki Y 12 , Inada Y 13 , Arantes V 14

Affiliations 

  • 1 Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-Cho, Kawaramachi-Hirokoji, Kamigyo-Ku, Kyoto, 602-8566, Japan. naohisa@koto.kpu-m.ac.jp
  • 2 Endoscopy Department, University of Florida, Gainesville, FL, USA
  • 3 Department of Gastroenterology, Gold Coast University, Gold Coast, Australia
  • 4 First Medical Department, Interdisciplinary Endoscopy, University Medical Center Mainz, Mainz, Germany
  • 5 Gastroenterology Unit, Faculty of Medicine, Universiti Teknologi MARA, Selangor, Malaysia
  • 6 Division of Gastroenterology, Department of Internal Medicine, Yuan's General Hospital, Kaohsiung, Taiwan
  • 7 University Surgical Unit, National Hospital of Sri Lanka, Colombo, Sri Lanka
  • 8 Division of Gastroenterology & Hepatology, University Medicine Cluster, National University Hospital, Singapore, Singapore
  • 9 Division of Gastroenterology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
  • 10 Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-Cho, Kawaramachi-Hirokoji, Kamigyo-Ku, Kyoto, 602-8566, Japan
  • 11 Department of Gastroenterology, Aiseikai Yamashina Hospital, Kyoto, Japan
  • 12 Department of Gastroenterology, Nishizin Hospital, Kyoto, Japan
  • 13 Department of Gastroenterology, Kyoto First Red Cross Hospital, Kyoto, Japan
  • 14 Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
Dig Dis Sci, 2023 Oct;68(10):3943-3952.
PMID: 37558800 DOI: 10.1007/s10620-023-08057-2

Abstract

INTRODUCTION: In light-emitting diode (LED) and LASER colonoscopy, linked color imaging (LCI) and blue light/laser imaging (BLI) are used for lesion detection and characterization worldwide. We analyzed the difference of LCI and BLI images of colorectal lesions between LED and LASER in a multinational study.

METHODS: We prospectively observed lesions with white light imaging (WLI), LCI, and BLI using both LED and LASER colonoscopies from January 2020 to August 2021. Images were graded by 27 endoscopists from nine countries using the polyp visibility score: 4 (excellent), 3 (good), 2 (fair), and 1 (poor) and the comparison score (LED better/similar/LASER better) for WLI/LCI/BLI images of each lesion.

RESULTS: Finally, 32 lesions (polyp size: 20.0 ± 15.2 mm) including 9 serrated lesions, 13 adenomas, and 10 T1 cancers were evaluated. The polyp visibility scores of LCI/WLI for international and Japan-expert endoscopists were 3.17 ± 0.73/3.17 ± 0.79 (p = 0.92) and 3.34 ± 0.78/2.84 ± 1.22 (p 

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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