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Improved Visibility of Barrett’s Esophagus with Linked Color Imaging: Inter- and Intra-Rater Reliability and Quantitative Analysis.

Authors :
Takeda, Tsutomu
Nagahara, Akihito
Ishizuka, Kei
Okubo, Shoki
Haga, Keiichi
Suzuki, Maiko
Nakajima, Akihito
Komori, Hiroyuki
Akazawa, Yoichi
Izumi, Kentaro
Matsumoto, Kohei
Ueyama, Hiroya
Shimada, Yuji
Matsumoto, Kenshi
Asaoka, Daisuke
Shibuya, Tomoyoshi
Sakamoto, Naoto
Osada, Taro
Hojo, Mariko
Nojiri, Shuko
Source :
Digestion. Feb2018, Vol. 97 Issue 2, p183-194. 12p. 4 Color Photographs, 6 Charts, 2 Graphs.
Publication Year :
2018

Abstract

Background/Aims: To evaluate the usefulness of linked color imaging (LCI) and blue LASER imaging (BLI) in Barrett’s esophagus (BE) compared with white light imaging (WLI). Methods: Five expert and trainee endoscopists compared WLI, LCI, and BLI images obtained from 63 patients with short-segment BE. Physicians assessed visibility as follows: 5 (improved), 4 (somewhat improved), 3 (equivalent), 2 (somewhat decreased), and one (decreased). Scores were evaluated to assess visibility. The inter- and intra-rater reliability (intra-class correlation coefficient) of image assessments were also evaluated. Images were objectively evaluated based on L* a* b* color values and color differences (ΔE*) in a CIELAB color space system. Results: Improved visibility compared with WLI was achieved for LCI: 44.4%, BLI: 0% for all endoscopists; LCI: 55.6%, BLI: 1.6% for trainees; and LCI: 47.6%, BLI: 0% for experts. The visibility score of trainees compared with experts was significantly higher for LCI (p = 0.02). Intra- and inter-rater reliability ratings for LCI compared with WLI were “moderate” for trainees, and “moderate-substantial” for experts. The ΔE* revealed statistically significant differences between WLI and LCI. Conclusion: LCI improved the visibility of short-segment BE compared with WLI, especially for trainees, when evaluated both subjectively and objectively. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00122823
Volume :
97
Issue :
2
Database :
Academic Search Index
Journal :
Digestion
Publication Type :
Academic Journal
Accession number :
128063594
Full Text :
https://doi.org/10.1159/000485459