Additional value of linked color imaging in colonoscopy: a retrospective study
Background and study aims Linked color imaging (LCI), a newly developed optical modality, enhances mucosal surface contrast. We aimed to evaluate the efficacy and feasibility of insertion-phase LCI in terms of additional benefit of colorectal polyp detection over that obtained with white light imagi...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Georg Thieme Verlag KG
2019-10-01
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| Series: | Endoscopy International Open |
| Online Access: | http://www.thieme-connect.de/DOI/DOI?10.1055/a-0982-2904 |
| _version_ | 1818514348521291776 |
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| author | Taku Sakamoto Yutaka Tomizawa Hourin Cho Hiroyuki Takamaru Masau Sekiguchi Masayoshi Yamada Takahisa Matsuda Yoshitaka Murakami Yutaka Saito |
| author_facet | Taku Sakamoto Yutaka Tomizawa Hourin Cho Hiroyuki Takamaru Masau Sekiguchi Masayoshi Yamada Takahisa Matsuda Yoshitaka Murakami Yutaka Saito |
| author_sort | Taku Sakamoto |
| collection | DOAJ |
| description | Background and study aims Linked color imaging (LCI), a newly developed optical modality, enhances mucosal surface contrast. We aimed to evaluate the efficacy and feasibility of insertion-phase LCI in terms of additional benefit of colorectal polyp detection over that obtained with white light imaging (WLI).
Patients and methods We consecutively enrolled eligible patients from November 2017 to June 2018. During colonoscopy, LCI or WLI was alternatively applied on scope insertion and LCI was applied on scope withdrawal. Patients were divided into two groups according to the protocolized difference of imaging modality used in the scope insertion phase (LCI and WLI groups). Group differences in clinical outcomes were evaluated.
Results A total of 138 patients were enrolled in this study, with equal numbers of patients assigned to the LCI and WLI groups. Most of the lesions located in the proximal colon were detected during the withdrawal phase, without a difference in proportions between the two groups. However, in the LCI group, eight of 49 lesions (16 %) located in the sigmoid and rectosigmoid colon were only detected during the insertion phase, and no such lesions (0 %) were detected during the insertion phase in the WLI group (P = 0.045).
Conclusions This study showed the efficacy and feasibility of LCI in improving colorectal polyp detection in the sigmoid colon, especially during insertion. Further studies are warranted to validate the results of our single-center study. |
| first_indexed | 2024-12-11T00:14:32Z |
| format | Article |
| id | doaj.art-7a37d694f01a423c91d585efadff4348 |
| institution | Directory Open Access Journal |
| issn | 2364-3722 2196-9736 |
| language | English |
| last_indexed | 2024-12-11T00:14:32Z |
| publishDate | 2019-10-01 |
| publisher | Georg Thieme Verlag KG |
| record_format | Article |
| series | Endoscopy International Open |
| spelling | doaj.art-7a37d694f01a423c91d585efadff43482022-12-22T01:28:00ZengGeorg Thieme Verlag KGEndoscopy International Open2364-37222196-97362019-10-010711E1448E145410.1055/a-0982-2904Additional value of linked color imaging in colonoscopy: a retrospective studyTaku Sakamoto0Yutaka Tomizawa1Hourin Cho2Hiroyuki Takamaru3Masau Sekiguchi4Masayoshi Yamada5Takahisa Matsuda6Yoshitaka Murakami7Yutaka Saito8Endoscopy Division, National Cancer Center Hospital, Tokyo, JapanEndoscopy Division, National Cancer Center Hospital, Tokyo, JapanEndoscopy Division, National Cancer Center Hospital, Tokyo, JapanEndoscopy Division, National Cancer Center Hospital, Tokyo, JapanEndoscopy Division, National Cancer Center Hospital, Tokyo, JapanEndoscopy Division, National Cancer Center Hospital, Tokyo, JapanEndoscopy Division, National Cancer Center Hospital, Tokyo, JapanDepartment of Medical Statistics, Toho University, Tokyo, JapanEndoscopy Division, National Cancer Center Hospital, Tokyo, JapanBackground and study aims Linked color imaging (LCI), a newly developed optical modality, enhances mucosal surface contrast. We aimed to evaluate the efficacy and feasibility of insertion-phase LCI in terms of additional benefit of colorectal polyp detection over that obtained with white light imaging (WLI). Patients and methods We consecutively enrolled eligible patients from November 2017 to June 2018. During colonoscopy, LCI or WLI was alternatively applied on scope insertion and LCI was applied on scope withdrawal. Patients were divided into two groups according to the protocolized difference of imaging modality used in the scope insertion phase (LCI and WLI groups). Group differences in clinical outcomes were evaluated. Results A total of 138 patients were enrolled in this study, with equal numbers of patients assigned to the LCI and WLI groups. Most of the lesions located in the proximal colon were detected during the withdrawal phase, without a difference in proportions between the two groups. However, in the LCI group, eight of 49 lesions (16 %) located in the sigmoid and rectosigmoid colon were only detected during the insertion phase, and no such lesions (0 %) were detected during the insertion phase in the WLI group (P = 0.045). Conclusions This study showed the efficacy and feasibility of LCI in improving colorectal polyp detection in the sigmoid colon, especially during insertion. Further studies are warranted to validate the results of our single-center study.http://www.thieme-connect.de/DOI/DOI?10.1055/a-0982-2904 |
| spellingShingle | Taku Sakamoto Yutaka Tomizawa Hourin Cho Hiroyuki Takamaru Masau Sekiguchi Masayoshi Yamada Takahisa Matsuda Yoshitaka Murakami Yutaka Saito Additional value of linked color imaging in colonoscopy: a retrospective study Endoscopy International Open |
| title | Additional value of linked color imaging in colonoscopy: a retrospective study |
| title_full | Additional value of linked color imaging in colonoscopy: a retrospective study |
| title_fullStr | Additional value of linked color imaging in colonoscopy: a retrospective study |
| title_full_unstemmed | Additional value of linked color imaging in colonoscopy: a retrospective study |
| title_short | Additional value of linked color imaging in colonoscopy: a retrospective study |
| title_sort | additional value of linked color imaging in colonoscopy a retrospective study |
| url | http://www.thieme-connect.de/DOI/DOI?10.1055/a-0982-2904 |
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