Evidence map›Paper›PMID 42058684›Full record

ArticleJournal of the Canadian Association of Gastroenterology2026

Establishing reference standards for small and diminutive colorectal polyp size: validation of caliper-based size measurement.

Eric Cristea, Mohamed Zineddine Mahdadi, Preslava Aleksieva, Megan Oleksiw, Linda Scavo, Victoire Michal, Roupen Djinbachian, Robert Battat, Dane Christina Daoud, Simon Bouchard and 4 more

Abstract read
In one paragraph

Article in Journal of the Canadian Association of Gastroenterology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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

14 authors.

Eric CristeaDivision of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Quebec H2X 0A9, Canada.ORCID https://orcid.org/0009-0003-9505-2750
Mohamed Zineddine MahdadiDivision of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Quebec H2X 0A9, Canada.
Preslava AleksievaDivision of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Quebec H2X 0A9, Canada.
Megan OleksiwDivision of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Quebec H2X 0A9, Canada.
Linda ScavoDivision of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Quebec H2X 0A9, Canada.
Victoire MichalMontreal University Hospital Research Center (CRCHUM), Montreal, Quebec H2X 0A9, Canada.
Roupen DjinbachianDivision of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Quebec H2X 0A9, Canada.
Robert BattatDivision of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Quebec H2X 0A9, Canada.
Dane Christina DaoudDivision of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Quebec H2X 0A9, Canada.
Simon BouchardDivision of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Quebec H2X 0A9, Canada.
Mickael BouinDivision of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Quebec H2X 0A9, Canada.
Jeremy Liu Chen KiowDivision of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Quebec H2X 0A9, Canada.
Benoit PanziniDivision of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Quebec H2X 0A9, Canada.
Daniel von RentelnDivision of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Quebec H2X 0A9, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and Aim: Accurate measurement of resected colorectal polyps is essential for clinical management, research, and the development of artificial intelligence-based size estimation systems. Despite widespread use of caliper-based measurement for specimen sizing, formal validation against a reference standard is lacking. This study aimed to validate caliper-based measurement of resected small and diminutive colorectal polyps against high-resolution digital microscopy, a previously validated reference method. Methods: At the Centre hospitalier de l'Université de Montréal, 143 polyps from 92 patients were measured immediately after resection using vernier digital calipers in the endoscopy suite. Independent measurements were subsequently obtained using high-resolution digital microscopy under blinded conditions. Agreement between methods was assessed using bias analysis, Bland-Altman limits of agreement, intraclass correlation coefficient (ICC), and categorical size concordance. Results: Caliper-based measurements demonstrated a mean bias of -0.22 mm (95% CI: -0.34 to -0.11; Conclusion: Caliper-based measurement provides accurate and reproducible estimates of polyp size when compared with digital microscopy, supporting its use for clinical and research applications requiring direct specimen measurement.

Indexed as

artificial intelligencecolorectal cancerdigital microscopyendoscopic databasespolyp sizing

Identifiers

PMID42058684
PMCPMC13123700

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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.