Linked color imaging improves the visibility of various featured colorectal polyps in an endoscopist’s visibility and color difference value

Purpose: Linked color imaging (LCI) by laser endoscopy is a novel narrow band light observation. In this study, we analyzed the efficacy of LCI for improving the various featured colorectal polyp’s visibility utilizing a subjective endoscopist’s visibility scoring and objective color difference (CD)...

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Published in:International Journal of Colorectal Disease
Main Author: Yoshida N.; Naito Y.; Yasuda R.; Murakami T.; Hirose R.; Ogiso K.; Inada Y.; Dohi O.; Kamada K.; Uchiyama K.; Handa O.; Konishi H.; Rani R.A.; Kishimoto M.; Konishi E.; Itoh Y.
Format: Article
Language:English
Published: Springer Verlag 2017
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85025098658&doi=10.1007%2fs00384-017-2855-z&partnerID=40&md5=f3ba207d3f2be2eaf16d8382ed7348fc
id 2-s2.0-85025098658
spelling 2-s2.0-85025098658
Yoshida N.; Naito Y.; Yasuda R.; Murakami T.; Hirose R.; Ogiso K.; Inada Y.; Dohi O.; Kamada K.; Uchiyama K.; Handa O.; Konishi H.; Rani R.A.; Kishimoto M.; Konishi E.; Itoh Y.
Linked color imaging improves the visibility of various featured colorectal polyps in an endoscopist’s visibility and color difference value
2017
International Journal of Colorectal Disease
32
9
10.1007/s00384-017-2855-z
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85025098658&doi=10.1007%2fs00384-017-2855-z&partnerID=40&md5=f3ba207d3f2be2eaf16d8382ed7348fc
Purpose: Linked color imaging (LCI) by laser endoscopy is a novel narrow band light observation. In this study, we analyzed the efficacy of LCI for improving the various featured colorectal polyp’s visibility utilizing a subjective endoscopist’s visibility scoring and objective color difference (CD) value. Methods: We retrospectively reviewed two pictures both with white light (WL) and LCI for 54 consecutive neoplastic polyps 2–20 mm in size. All pictures were evaluated by four endoscopists according to a published polyp visibility score from four (excellent visibility) to one (poor visibility). Additionally, we calculated CD value between each polyp and surrounding mucosa in LCI and WL using an original software. Results: The mean polyp visibility scores of LCI (3.11 ± 1.05) were significantly higher than those of WL (2.50 ± 1.09, P < 0.001). The ratio of an endoscopist’s poor visibility (polyp visibility scores 1 and 2) was significantly lower in LCI (27.9%) than WL (55.6%, P < 0.001). With respect to the CD analysis, the CD value of LCI was significantly higher than that of WL (33.3 ± 13.9 vs. 20.7 ± 13.6, P < 0.001). In a subgroup analysis, the polyp visibility scores and CD values of LCI about 24 diminutive polyps (≤5 mm) were higher than those of WL (3.29 ± 0.99 vs. 2.12 ± 0.99, P < 0.001; 31.6 ± 12.8 vs. 14.7 ± 7.6, P < 0.001). Additionally, the polyp visibility scores and CD values of LCI for polyps with any location, size, histology, and morphology were significantly higher than those of WL. Conclusions: LCI improved the various featured polyp’s visibility compared to WL in both polyp visibility scores and CD value. © 2017, Springer-Verlag GmbH Germany.
Springer Verlag
1791958
English
Article

author Yoshida N.; Naito Y.; Yasuda R.; Murakami T.; Hirose R.; Ogiso K.; Inada Y.; Dohi O.; Kamada K.; Uchiyama K.; Handa O.; Konishi H.; Rani R.A.; Kishimoto M.; Konishi E.; Itoh Y.
spellingShingle Yoshida N.; Naito Y.; Yasuda R.; Murakami T.; Hirose R.; Ogiso K.; Inada Y.; Dohi O.; Kamada K.; Uchiyama K.; Handa O.; Konishi H.; Rani R.A.; Kishimoto M.; Konishi E.; Itoh Y.
Linked color imaging improves the visibility of various featured colorectal polyps in an endoscopist’s visibility and color difference value
author_facet Yoshida N.; Naito Y.; Yasuda R.; Murakami T.; Hirose R.; Ogiso K.; Inada Y.; Dohi O.; Kamada K.; Uchiyama K.; Handa O.; Konishi H.; Rani R.A.; Kishimoto M.; Konishi E.; Itoh Y.
author_sort Yoshida N.; Naito Y.; Yasuda R.; Murakami T.; Hirose R.; Ogiso K.; Inada Y.; Dohi O.; Kamada K.; Uchiyama K.; Handa O.; Konishi H.; Rani R.A.; Kishimoto M.; Konishi E.; Itoh Y.
title Linked color imaging improves the visibility of various featured colorectal polyps in an endoscopist’s visibility and color difference value
title_short Linked color imaging improves the visibility of various featured colorectal polyps in an endoscopist’s visibility and color difference value
title_full Linked color imaging improves the visibility of various featured colorectal polyps in an endoscopist’s visibility and color difference value
title_fullStr Linked color imaging improves the visibility of various featured colorectal polyps in an endoscopist’s visibility and color difference value
title_full_unstemmed Linked color imaging improves the visibility of various featured colorectal polyps in an endoscopist’s visibility and color difference value
title_sort Linked color imaging improves the visibility of various featured colorectal polyps in an endoscopist’s visibility and color difference value
publishDate 2017
container_title International Journal of Colorectal Disease
container_volume 32
container_issue 9
doi_str_mv 10.1007/s00384-017-2855-z
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85025098658&doi=10.1007%2fs00384-017-2855-z&partnerID=40&md5=f3ba207d3f2be2eaf16d8382ed7348fc
description Purpose: Linked color imaging (LCI) by laser endoscopy is a novel narrow band light observation. In this study, we analyzed the efficacy of LCI for improving the various featured colorectal polyp’s visibility utilizing a subjective endoscopist’s visibility scoring and objective color difference (CD) value. Methods: We retrospectively reviewed two pictures both with white light (WL) and LCI for 54 consecutive neoplastic polyps 2–20 mm in size. All pictures were evaluated by four endoscopists according to a published polyp visibility score from four (excellent visibility) to one (poor visibility). Additionally, we calculated CD value between each polyp and surrounding mucosa in LCI and WL using an original software. Results: The mean polyp visibility scores of LCI (3.11 ± 1.05) were significantly higher than those of WL (2.50 ± 1.09, P < 0.001). The ratio of an endoscopist’s poor visibility (polyp visibility scores 1 and 2) was significantly lower in LCI (27.9%) than WL (55.6%, P < 0.001). With respect to the CD analysis, the CD value of LCI was significantly higher than that of WL (33.3 ± 13.9 vs. 20.7 ± 13.6, P < 0.001). In a subgroup analysis, the polyp visibility scores and CD values of LCI about 24 diminutive polyps (≤5 mm) were higher than those of WL (3.29 ± 0.99 vs. 2.12 ± 0.99, P < 0.001; 31.6 ± 12.8 vs. 14.7 ± 7.6, P < 0.001). Additionally, the polyp visibility scores and CD values of LCI for polyps with any location, size, histology, and morphology were significantly higher than those of WL. Conclusions: LCI improved the various featured polyp’s visibility compared to WL in both polyp visibility scores and CD value. © 2017, Springer-Verlag GmbH Germany.
publisher Springer Verlag
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language English
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