Cited by 216Colorectal Cancer Screening and DetectionAI in cancer detectionColorectal Cancer Surgical Treatments

Real-Time Computer-Aided Detection of Colorectal Neoplasia During Colonoscopy: A Systematic Review and Meta-analysis

Hassan, Cesare, Spadaccini, Marco, Mori, Yuichi, Foroutan, Farid, Facciorusso, Antonio, Gkolfakis, Paraskevas, Tziatzios, Georgios, Triantafyllou, Konstantinos +15 more·2023·Annals of Internal Medicine

Abstract

BACKGROUND: Artificial intelligence computer-aided detection (CADe) of colorectal neoplasia during colonoscopy may increase adenoma detection rates (ADRs) and reduce adenoma miss rates, but it may increase overdiagnosis and overtreatment of nonneoplastic polyps. PURPOSE: To quantify the benefits and harms of CADe in randomized trials. DESIGN: Systematic review and meta-analysis. (PROSPERO: CRD42022293181). DATA SOURCES: Medline, Embase, and Scopus databases through February 2023. STUDY SELECTION: Randomized trials comparing CADe-assisted with standard colonoscopy for polyp and cancer detection. DATA EXTRACTION: Adenoma detection rate (proportion of patients with ≥1 adenoma), number of adenomas detected per colonoscopy, advanced adenoma (≥10 mm with high-grade dysplasia and villous histology), number of serrated lesions per colonoscopy, and adenoma miss rate were extracted as benefit outcomes. Number of polypectomies for nonneoplastic lesions and withdrawal time were extracted as harm outcomes. For each outcome, studies were pooled using a random-effects model. Certainty of evidence was assessed using the GRADE (Grading of Recommendations Assessment, Development and Evaluation) framework. DATA SYNTHESIS: Twenty-one randomized trials on 18 232 patients were included. The ADR was higher in the CADe group than in the standard colonoscopy group (44.0% vs. 35.9%; relative risk, 1.24 [95% CI, 1.16 to 1.33]; low-certainty evidence), corresponding to a 55% (risk ratio, 0.45 [CI, 0.35 to 0.58]) relative reduction in miss rate (moderate-certainty evidence). More nonneoplastic polyps were removed in the CADe than the standard group (0.52 vs. 0.34 per colonoscopy; mean difference [MD], 0.18 polypectomy [CI, 0.11 to 0.26 polypectomy]; low-certainty evidence). Mean inspection time increased only marginally with CADe (MD, 0.47 minute [CI, 0.23 to 0.72 minute]; moderate-certainty evidence). LIMITATIONS: This review focused on surrogates of patient-important outcomes. Most patients, however, may consider cancer incidence and cancer-related mortality important outcomes. The effect of CADe on such patient-important outcomes remains unclear. CONCLUSION: The use of CADe for polyp detection during colonoscopy results in increased detection of adenomas but not advanced adenomas and in higher rates of unnecessary removal of nonneoplastic polyps. PRIMARY FUNDING SOURCE: European Commission Horizon 2020 Marie Skłodowska-Curie Individual Fellowship.

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Crossref · 10.7326/m22-3678

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Authors
Hassan, C., Spadaccini, M., Mori, Y., Foroutan, F., Facciorusso, A., Gkolfakis, P., Tziatzios, G., Triantafyllou, K., Antonelli, G., Khalaf, K., Rizkala, T., Vandvik, P. O., Fugazza, A., Rondonotti, E., Glissen-Brown, J. R., Kamba, S., Maida, M., Correale, L., Bhandari, P., Jover, R., Sharma, P., Rex, D. K., & Repici, A.
Affiliations
  • Humanitas University (IT)
  • University of Oslo (NO)
  • University Health Network (CA)
  • University of Foggia (IT)
  • Université Libre de Bruxelles (BE)
  • National and Kapodistrian University of Athens (GR)
  • Hepatogastroenterology Unit, Second Department of Internal Medicine-Propaedeutic, Medical School, National and Kapodistrian University of Athens, Attikon University General Hospital, Athens, Greece (G.T., K.T.)
  • Sapienza University of Rome (IT)
  • Lovisenberg Diakonale Sykehus (NO)
  • IRCCS Humanitas Research Hospital (IT)
  • Ospedale Valduce (IT)
  • Center for Advanced Endoscopy, Division of Gastroenterology and Hepatology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts (J.R.G.)
  • Jikei University School of Medicine (JP)
  • Gastroenterology and Endoscopy Unit, S. Elia-Raimondi Hospital, Caltanissetta, Italy (M.M.)
  • Queen Alexandra Hospital (GB)
  • Hospital General Universitario de Alicante Doctor Balmis (ES)
  • Kansas City VA Medical Center (US)
  • Indiana University Hospital (US)
Corresponding author
  • Hassan, Cesare
  • Spadaccini, Marco
Venue
Annals of Internal Medicine
Published
2023-09
Volume
176
Issue
9
Pages
1209-1220
ISSN
  • 0003-4819 (ISSN-L)
  • 1539-3704
OpenAlex
W4386213466
Cited by
216
References
37
Citations by year
2026: 62 · 2025: 88 · 2024: 58 · 2023: 8
FWCI
6.99
Type
journal article
Language
en
Open access
closed
Locations
  • Annals of Internal Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
Japan Society for the Promotion of Science (23K24615)
Topics
  • Health Sciences › Medicine › Oncology › Colorectal Cancer Screening and Detection
  • Physical Sciences › Computer Science › Artificial Intelligence › AI in cancer detection
  • Health Sciences › Medicine › Oncology › Colorectal Cancer Surgical Treatments
Keywords
computer-aided detection, colorectal neoplasia, colonoscopy, adenoma detection rate, advanced adenoma, serrated lesions, polypectomy, overdiagnosis, artificial intelligence, colorectal cancer screening, withdrawal time, inspection time, adenoma miss rate, colorectal cancer
MeSH terms
Artificial Intelligence, Colonoscopy, Computers, Humans, Colorectal Neoplasms, Databases, Factual

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