Evidence map›Paper›PMID 41262550›Full record

ArticleDEN open2026

White Light, Magnifying Endoscopy, Endocytoscopy, and Artificial Intelligence in Diagnosis of Early Colorectal Cancer: A Comparative Study.

Eri Tamura, Shin-Ei Kudo, Shunto Iwasaki, Shigenori Semba, Tomoya Shibuya, Shun Kato, Takanori Kuroki, Yuta Sato, Tatsuya Sakurai, Yushi Ogawa and 11 more

Abstract read
In one paragraph

Article in DEN open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. Review
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

21 authors.

Eri TamuraDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.
Shin-Ei KudoDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.
Shunto IwasakiDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.
Shigenori SembaDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.
Tomoya ShibuyaDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.
Shun KatoDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.
Takanori KurokiDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.
Yuta SatoDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.
Tatsuya SakuraiDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.
Yushi OgawaDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.
Yuta KouyamaDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.
Yasuharu MaedaDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.ORCID https://orcid.org/0000-0002-4820-5959
Katsuro IchimasaDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.ORCID https://orcid.org/0000-0001-6675-1219
Noriyuki OgataDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.
Takemasa HayashiDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.ORCID https://orcid.org/0000-0001-9395-5794
Kunihiko WakamuraDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.
Hideyuki MiyachiDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.
Toshiyuki BabaDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.
Fumio IshidaDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.
Tetsuo NemotoDepartment of Diagnostic Pathology Showa Medical University Northern Yokohama Hospital Kanagawa Japan.
Masashi MisawaDigestive Disease Center Showa Medical University Northern Yokohama Hospital Kanagawa Japan.ORCID https://orcid.org/0000-0002-8520-2036

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objectives: Early detection of colorectal cancer is critical for improving prognosis. However, assessing invasion depth-distinguishing between superficial cancer (T1a) and deep submucosal invasive cancer (T1b)-remains challenging. Recently, artificial intelligence (AI)-assisted computer-aided diagnosis (CADx) systems have been introduced to complement conventional endoscopy. This study aims to compare the diagnostic accuracy of endoscopists in predicting deep submucosal invasion in early colorectal cancer under four modalities: white-light imaging (WLI), magnifying endoscopy (including narrow-band imaging magnification and pit pattern), endocytoscopy (EC), and CADx support. Methods: We conducted a single-center retrospective study using stored endoscopic images between April 2021 and December 2022. Each lesion was evaluated using white light imaging, magnifying endoscopy, EC, and CADx analysis with the EndoBRAIN-Plus system. Trainee and expert endoscopists assessed the images sequentially, recording their estimations of invasion depth (T1a vs. T1b) and confidence levels. Sensitivity, specificity, and accuracy were calculated against the pathological reference. We compared performances stratified by confidence level and endoscopist experience. Results: During the study period, 66 lesions were eligible. Of them, 27% (18 lesions) were T1b cancers. Diagnostic accuracy improved progressively from white light imaging (82.7% [95% confidence interval {95%CI}: 81.2-86.9]) to EC (85.6% [95%CI: 82.7-88.2]). The highest specificity and accuracy were achieved when AI-assisted diagnosis was incorporated (accuracy: 88.9% [95%CI: 86.3-91.2], specificity: 93.1% [95%CI: 90.6-95.2]). The proportion of high-confidence readings rose from 40.2% to 75.5%. This was most pronounced in the trainee group. Conclusions: Integrating advanced endoscopic imaging with CADx significantly improved accuracy in assessing invasion depth. This approach may guide treatment decisions in early-stage colorectal cancer.

Indexed as

artificial intelligencecolorectal neoplasmscomputer‐aided diagnosisendoscopy

Identifiers

PMID41262550
PMCPMC12623442

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.