{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T03:44:19Z","timestamp":1790567059528,"version":"4.1.0"},"reference-count":22,"publisher":"Georg Thieme Verlag KG","issue":"10","license":[{"start":{"date-parts":[[2022,4,7]],"date-time":"2022-04-07T00:00:00Z","timestamp":1649289600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002858","name":"China Postdoctoral Science Foundation","doi-asserted-by":"crossref","award":["2021M702341"],"award-info":[{"award-number":["2021M702341"]}],"id":[{"id":"10.13039\/501100002858","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["82170675"],"award-info":[{"award-number":["82170675"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]},{"name":"1\u00b73\u00b75 project for disciplines of excellence, West China Hospital, Sichuan University","award":["ZYJC21011"],"award-info":[{"award-number":["ZYJC21011"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Endoscopy"],"published-print":{"date-parts":[[2022,10]]},"abstract":"<jats:p>Background\u2002This 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\u2019s evaluation of FEQ and FEQ scores from experts, and adenoma detection rate (ADR) and withdrawal time of colonoscopists, and evaluated the system\u2019s ability to improve FEQ during colonoscopy.<\/jats:p>\n                  <jats:p>Methods\u2002First, 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\u02bcs performance in enhancing fold examination.<\/jats:p>\n                  <jats:p>Results\u2002The system\u2019s evaluations of FEQ of each endoscopist were significantly correlated with experts\u02bc scores (r\u200a=\u200a0.871, P\u200a&lt;\u200a0.001), historical ADR (r\u200a=\u200a0.852, P\u200a=\u200a0.001), and withdrawal time (r\u200a=\u200a0.727, P\u200a=\u200a0.01). For colonoscopies performed by colonoscopists with previously low ADRs (&lt;\u200a25\u200a%), AI assistance significantly improved the FEQ, evaluated by both the AI system (0.29 [interquartile range (IQR) 0.27\u20130.30] vs. 0.23 [0.17\u20130.26]) and experts (14.00 [14.00\u201315.00] vs. 11.67 [10.00\u201313.33]) (both P\u200a&lt;\u200a0.001).<\/jats:p>\n                  <jats:p>Conclusion\u2002The system\u2019s 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.<\/jats:p>","DOI":"10.1055\/a-1799-8297","type":"journal-article","created":{"date-parts":[[2022,4,7]],"date-time":"2022-04-07T18:40:48Z","timestamp":1649356848000},"page":"972-979","source":"Crossref","is-referenced-by-count":47,"title":["Artificial intelligence-based assessments of colonoscopic withdrawal technique: a new method for measuring and enhancing the quality of fold examination"],"prefix":"10.1055","volume":"54","author":[{"given":"Wei","family":"Liu","sequence":"first","affiliation":[{"name":"Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yu","family":"Wu","sequence":"first","affiliation":[{"name":"Machine Intelligence Laboratory, College of Computer Science, Sichuan University, Chengdu, Sichuan, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xianglei","family":"Yuan","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jingyu","family":"Zhang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, Sichuan, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yao","family":"Zhou","sequence":"additional","affiliation":[{"name":"Machine Intelligence Laboratory, College of Computer Science, Sichuan University, Chengdu, Sichuan, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4899-4425","authenticated-orcid":false,"given":"Wanhong","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology, Cangxi People\u02bcs Hospital, Guangyuan, Sichuan, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peipei","family":"Zhu","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology, Dazhou Integrated Traditional Chinese and Western Medicine Hosptial, Dazhou, Sichuan, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5907-5312","authenticated-orcid":false,"given":"Zhang","family":"Tao","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology, Nanchong Central Hospital, Nanchong, Sichuan, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Long","family":"He","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9898-8656","authenticated-orcid":false,"given":"Bing","family":"Hu","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhang","family":"Yi","sequence":"additional","affiliation":[{"name":"Machine Intelligence Laboratory, College of Computer Science, Sichuan University, Chengdu, Sichuan, 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