Usefulness of virtual scale endoscope for early gastrointestinal lesions
Abstract Objectives For early gastrointestinal lesions, size is an important factor in the selection of treatment. Virtual scale endoscope (VSE) is a newly developed endoscope that can measure size more accurately than visual measurement. This study aimed to investigate whether VSE measurement is ac...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-04-01
|
| Series: | DEN Open |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/deo2.386 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850177635737403392 |
|---|---|
| author | Nobuhisa Minakata Hiroaki Ikematsu Fumiaki Kiyomi Suma Inoue Takashi Akutagawa Takashi Watanabe Tomonori Yano Ryo Shimoda |
| author_facet | Nobuhisa Minakata Hiroaki Ikematsu Fumiaki Kiyomi Suma Inoue Takashi Akutagawa Takashi Watanabe Tomonori Yano Ryo Shimoda |
| author_sort | Nobuhisa Minakata |
| collection | DOAJ |
| description | Abstract Objectives For early gastrointestinal lesions, size is an important factor in the selection of treatment. Virtual scale endoscope (VSE) is a newly developed endoscope that can measure size more accurately than visual measurement. This study aimed to investigate whether VSE measurement is accurate for early gastrointestinal lesions of various sizes and morphologies. Methods This study prospectively enrolled patients with early gastrointestinal lesions ≤20 mm in size visually. Lesion sizes were measured in the gastrointestinal tract visually, on endoscopic resection specimens with VSE, and finally on endoscopic resection specimens using a ruler. The primary endpoint was the normalized difference (ND) of VSE measurement. The secondary endpoints were the ND of visual measurement and the variation between NDs of VSE and visual measurements. ND was calculated as (100 × [measured size − true size] / true size) (%). True size was defined as size measured using a ruler. Results This study included 60 lesions from April 2022 to December 2022, with 20 each in the esophagus, stomach, and colon. The lesion size was 14.0 ± 6.3 mm (mean ± standard deviation). Morphologies were protruded, slightly elevated, and flat or slightly depressed type in 8, 24, and 28 lesions, respectively. The primary endpoint was 0.3 ± 8.8%. In the secondary endpoints, the ND of visual measurement was −1.7 ± 29.3%, and the variability was significantly smaller in the ND of VSE measurement than in that of visual measurement (p < 0.001, F‐test). Conclusions VSE measurement is accurate for early gastrointestinal lesions of various sizes and morphologies. |
| format | Article |
| id | doaj-art-d53eabcb6b1747c6b51a3aad5c674bfb |
| institution | OA Journals |
| issn | 2692-4609 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | DEN Open |
| spelling | doaj-art-d53eabcb6b1747c6b51a3aad5c674bfb2025-08-20T02:18:56ZengWileyDEN Open2692-46092025-04-0151n/an/a10.1002/deo2.386Usefulness of virtual scale endoscope for early gastrointestinal lesionsNobuhisa Minakata0Hiroaki Ikematsu1Fumiaki Kiyomi2Suma Inoue3Takashi Akutagawa4Takashi Watanabe5Tomonori Yano6Ryo Shimoda7Department of Gastroenterology and Endoscopy National Cancer Center Hospital East Chiba JapanDepartment of Gastroenterology and Endoscopy National Cancer Center Hospital East Chiba JapanDepartment of Statistics and Data Center Clinical Research Support Center Kyushu Fukuoka JapanDepartment of Internal Medicine Division of Gastroenterology Saga University Saga JapanDepartment of Endoscopic Diagnostics and Therapeutics Saga University Hospital Saga JapanDepartment of Gastroenterology and Endoscopy National Cancer Center Hospital East Chiba JapanDepartment of Gastroenterology and Endoscopy National Cancer Center Hospital East Chiba JapanDepartment of Endoscopic Diagnostics and Therapeutics Saga University Hospital Saga JapanAbstract Objectives For early gastrointestinal lesions, size is an important factor in the selection of treatment. Virtual scale endoscope (VSE) is a newly developed endoscope that can measure size more accurately than visual measurement. This study aimed to investigate whether VSE measurement is accurate for early gastrointestinal lesions of various sizes and morphologies. Methods This study prospectively enrolled patients with early gastrointestinal lesions ≤20 mm in size visually. Lesion sizes were measured in the gastrointestinal tract visually, on endoscopic resection specimens with VSE, and finally on endoscopic resection specimens using a ruler. The primary endpoint was the normalized difference (ND) of VSE measurement. The secondary endpoints were the ND of visual measurement and the variation between NDs of VSE and visual measurements. ND was calculated as (100 × [measured size − true size] / true size) (%). True size was defined as size measured using a ruler. Results This study included 60 lesions from April 2022 to December 2022, with 20 each in the esophagus, stomach, and colon. The lesion size was 14.0 ± 6.3 mm (mean ± standard deviation). Morphologies were protruded, slightly elevated, and flat or slightly depressed type in 8, 24, and 28 lesions, respectively. The primary endpoint was 0.3 ± 8.8%. In the secondary endpoints, the ND of visual measurement was −1.7 ± 29.3%, and the variability was significantly smaller in the ND of VSE measurement than in that of visual measurement (p < 0.001, F‐test). Conclusions VSE measurement is accurate for early gastrointestinal lesions of various sizes and morphologies.https://doi.org/10.1002/deo2.386colonoscopyendoscopic submucosal dissectionendoscopyprospective studysize perception |
| spellingShingle | Nobuhisa Minakata Hiroaki Ikematsu Fumiaki Kiyomi Suma Inoue Takashi Akutagawa Takashi Watanabe Tomonori Yano Ryo Shimoda Usefulness of virtual scale endoscope for early gastrointestinal lesions DEN Open colonoscopy endoscopic submucosal dissection endoscopy prospective study size perception |
| title | Usefulness of virtual scale endoscope for early gastrointestinal lesions |
| title_full | Usefulness of virtual scale endoscope for early gastrointestinal lesions |
| title_fullStr | Usefulness of virtual scale endoscope for early gastrointestinal lesions |
| title_full_unstemmed | Usefulness of virtual scale endoscope for early gastrointestinal lesions |
| title_short | Usefulness of virtual scale endoscope for early gastrointestinal lesions |
| title_sort | usefulness of virtual scale endoscope for early gastrointestinal lesions |
| topic | colonoscopy endoscopic submucosal dissection endoscopy prospective study size perception |
| url | https://doi.org/10.1002/deo2.386 |
| work_keys_str_mv | AT nobuhisaminakata usefulnessofvirtualscaleendoscopeforearlygastrointestinallesions AT hiroakiikematsu usefulnessofvirtualscaleendoscopeforearlygastrointestinallesions AT fumiakikiyomi usefulnessofvirtualscaleendoscopeforearlygastrointestinallesions AT sumainoue usefulnessofvirtualscaleendoscopeforearlygastrointestinallesions AT takashiakutagawa usefulnessofvirtualscaleendoscopeforearlygastrointestinallesions AT takashiwatanabe usefulnessofvirtualscaleendoscopeforearlygastrointestinallesions AT tomonoriyano usefulnessofvirtualscaleendoscopeforearlygastrointestinallesions AT ryoshimoda usefulnessofvirtualscaleendoscopeforearlygastrointestinallesions |