Evidence map›Paper›PMID 39900518›Full record

ArticleDigestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society2025

Three-dimensional optically cleared tissue imaging for analyzing endoscopic images of gastrointestinal neoplasms (with video).

Koki Nakamura, Koki Morishita, Nobuhiko Onda, Ikuko Sakai, Shinya Matsumoto, Eri Tamura, Yuta Kouyama, Yushi Ogawa, Masashi Misawa, Takemasa Hayashi and 3 more

Abstract read
In one paragraph

Article in Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors.

Koki NakamuraDepartment of Biological Evaluation Analysis Technology, Olympus Medical Systems Corp., Tokyo, Japan.
Koki MorishitaDepartment of Optical Engineering, Olympus Medical Systems Corp., Tokyo, Japan.
Nobuhiko OndaDepartment of Biological Evaluation Analysis Technology, Olympus Medical Systems Corp., Tokyo, Japan.
Ikuko SakaiDepartment of Optical Engineering, Olympus Medical Systems Corp., Tokyo, Japan.
Shinya MatsumotoDepartment of Optical Engineering, Olympus Medical Systems Corp., Tokyo, Japan.
Eri TamuraDigestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan.
Yuta KouyamaDigestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan.
Yushi OgawaDigestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan.
Masashi MisawaDigestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan.ORCID https://orcid.org/0000-0002-8520-2036
Takemasa HayashiDigestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan.
Hideyuki MiyachiDigestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan.
Shin-Ei KudoDigestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan.
Tetsuo NemotoDepartment of Diagnostic Pathology and Laboratory Medicine, Showa University Northern Yokohama Hospital, Kanagawa, Japan.

Funding

Olympus Medical Systems Corp.
6 · The paper itself

Abstract

objectivesTo develop a procedure that matches magnifying endoscopic images with narrow-band imaging to 3D tissue structures using a tissue-clearing technique and to qualitatively and quantitatively analyze specified structures in gastrointestinal neoplasms.

methodsEndoscopically resected formalin-fixed paraffin-embedded gastrointestinal tissues (three esophagus, four stomach, seven colon) were made transparent by ethyl cinnamate. They were then subjected to fluorescent staining of nuclei and blood vessels followed by 3D imaging using a confocal laser scanning microscope. A one-to-one correspondence between magnifying endoscopic and 3D reconstructed images was established using vessels and crypts with characteristic shapes as guides, and the depth and caliber of specified vessels were measured.

resultsAll tissues were optically cleared, which allowed 3D visualization of vascular structures and nuclei in all layers. In the esophagus, intraepithelial papillary capillary loops and subepithelial capillary networks were identified. In the upper part of the stomach, polygonal subepithelial capillary loops surrounding the pits were observed, while in the lower part, surface epithelium with ridge-like structures and coiled vessels were observed. A honeycomb pit structure and surrounding vascular structures were identified in the colon. Quantitative analysis showed the various contrasts of a single continuous vessel in the endoscopic image were due to different depths at which the vessel tortuously ran.

conclusionWe established a procedure to allow one-to-one correspondence between magnifying endoscopic and 3D reconstructed images and to measure the depth and caliber of endoscopically visualized vessels of interest. This method is expected to improve endoscopic diagnosis and further the development of endoscopic imaging technologies.

Indexed as

Endoscopy, GastrointestinalGastrointestinal NeoplasmsImaging, Three-DimensionalNarrow Band ImagingHumansMicroscopy, Confocal3D imagingendoscopygastrointestinal neoplasmgastrointestinal tractnarrow band imaging

Identifiers

PMID39900518
PMCPMC12162411

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.