Evidence map›Paper›PMID 35391493›Full record

Observational studyEndoscopy2022

Artificial intelligence-based assessments of colonoscopic withdrawal technique: a new method for measuring and enhancing the quality of fold examination.

Wei Liu, Yu Wu, Xianglei Yuan, Jingyu Zhang, Yao Zhou, Wanhong Zhang, Peipei Zhu, Zhang Tao, Long He, Bing Hu and 1 more

Abstract readObservational Study
In one paragraph

Observational study in Endoscopy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed.

  1. Trial
  2. Trial
  3. Article
  4. Ethical and Legal Implications of Implementing AI in Gastrointestinal Endoscopy.Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society · 2026
    Review
  5. Review
  6. Review
  7. Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. [Role of Artificial Intelligence in Improving Quality of Colonoscopy].The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chi · 2025
    Review
  13. Article
  14. Article
  15. Review
  16. Review
  17. Review
  18. Article
  19. Review
  20. Withdrawal time in colonoscopy, past, present, and future, a narrative review.Translational gastroenterology and hepatology · 2023
    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

11 authors.

Wei LiuDepartment of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Yu WuMachine Intelligence Laboratory, College of Computer Science, Sichuan University, Chengdu, Sichuan, China.
Xianglei YuanDepartment of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Jingyu ZhangState Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, Sichuan, China.
Yao ZhouMachine Intelligence Laboratory, College of Computer Science, Sichuan University, Chengdu, Sichuan, China.
Wanhong ZhangDepartment of Gastroenterology, Cangxi People's Hospital, Guangyuan, Sichuan, China.ORCID 0000-0002-4899-4425
Peipei ZhuDepartment of Gastroenterology, Dazhou Integrated Traditional Chinese and Western Medicine Hosptial, Dazhou, Sichuan, China.
Zhang TaoDepartment of Gastroenterology, Nanchong Central Hospital, Nanchong, Sichuan, China.ORCID 0000-0001-5907-5312
Long HeDepartment of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Bing HuDepartment of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.ORCID 0000-0002-9898-8656
Zhang YiMachine Intelligence Laboratory, College of Computer Science, Sichuan University, Chengdu, Sichuan, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis study aimed to develop an artificial intelligence (AI)-based system for measuring fold examination quality (FEQ) of colonoscopic withdrawal technique. We also examined the relationship between the system's evaluation of FEQ and FEQ scores from experts, and adenoma detection rate (ADR) and withdrawal time of colonoscopists, and evaluated the system's ability to improve FEQ during colonoscopy.

methodsFirst, we developed an AI-based system for measuring FEQ. Next, 103 consecutive colonoscopies performed by 11 colonoscopists were collected for evaluation. Three experts graded FEQ of each colonoscopy, after which the recorded colonoscopies were evaluated by the system. We further assessed the system by correlating its evaluation of FEQ against expert scoring, historical ADR, and withdrawal time of each colonoscopist. We also conducted a prospective observational study to evaluate the system's performance in enhancing fold examination.

resultsThe system's evaluations of FEQ of each endoscopist were significantly correlated with experts' scores (r = 0.871,

conclusionThe system's evaluation of FEQ was strongly correlated with FEQ scores from experts, historical ADR, and withdrawal time of each colonoscopist. The system has the potential to enhance FEQ.

Indexed as

AdenomaColorectal NeoplasmsArtificial IntelligenceColonoscopesColonoscopyEarly Detection of CancerHumans

Identifiers

PMID35391493
PMCPMC9500011

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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.