Cited by 281Artificial Intelligence in Healthcare and EducationHuman-Automation Interaction and SafetyClinical Reasoning and Diagnostic Skills

The DOI matches its Crossref record; 48 of the 48 references it cites were found in a registry or an index; 19 of the 36 sources its claims cite were checked for support.

Experimental evidence of effective human–AI collaboration in medical decision-making

Open access

Published version of a preprint

Abstract

Artificial Intelligence ( ai ) systems are precious support for decision-making, with many applications also in the medical domain. The interaction between md s and ai enjoys a renewed interest following the increased possibilities of deep learning devices. However, we still have limited evidence-based knowledge of the context, design, and psychological mechanisms that craft an optimal human– ai collaboration. In this multicentric study, 21 endoscopists reviewed 504 videos of lesions prospectively acquired from real colonoscopies. They were asked to provide an optical diagnosis with and without the assistance of an ai support system. Endoscopists were influenced by ai ( $$\textsc {or}=3.05$$ O R = 3.05 ), but not erratically: they followed the ai advice more when it was correct ( $$\textsc {or}=3.48$$ O R = 3.48 ) than incorrect ( $$\textsc {or}=1.85$$ O R = 1.85 ). Endoscopists achieved this outcome through a weighted integration of their and the ai opinions, considering the case-by-case estimations of the two reliabilities. This Bayesian-like rational behavior allowed the human– ai hybrid team to outperform both agents taken alone. We discuss the features of the human– ai interaction that determined this favorable outcome.

Overview

AI snapshot

Written from the paper’s full text.

TL;DR

In a multicentric within-subject experiment, 21 endoscopists diagnosed 504 colonoscopy lesion videos with and without AI support. They were influenced by AI but selectively followed correct more than incorrect advice, producing better hybrid human–AI accuracy than either alone.

Key findings

  • AI influenced endoscopists’ decisions (OR = 3.05 [2.76, 3.39]); on average, for every three lesions where endoscopists disagreed with AI in Session 1, only one disagreement remained in Session 2.
  • AI improved diagnostic accuracy (OR = 1.39 [1.28, 1.51]); every five lesions correctly evaluated without AI became seven correctly evaluated with AI. Effectiveness was OR = 3.48 [3.07, 3.98], while safety was OR = 0.54 [0.48, 0.62], indicating some negative impact when AI was wrong but a stronger tendency to accept correct AI advice.
  • Endoscopists discriminated good from bad AI advice: they followed AI more when it was correct than when it was incorrect, and their own confidence and perceived AI confidence predicted accuracy and modulated opinion switching.
  • Expertise modulated effects: non-experts benefited more in accuracy (OR = 1.61 [1.44, 1.79]) than experts (OR = 1.15 [1.01, 1.30]); both groups showed influence, effectiveness, and safety, though experts had lower safety (0.45 [0.37, 0.54]) than non-experts (0.63 [0.54, 0.75]).

Methods

  • Mixed design: within-subjects factor was treatment (no AI vs. AI); between-subjects factor was expertise (experts vs. non-experts). Twenty-one endoscopists participated: 10 experts and 11 non-experts from Austria, Israel, Japan, Portugal, and Spain.
  • Participants reviewed 504 videos of real colonoscopies, each presenting one lesion, in two sessions separated by at least two weeks per batch. Session 1 had no AI advice; Session 2 used GI Genius v3.0 in cade+cadx modality to dynamically offer an optical diagnosis. Histopathological diagnosis was ground truth.
  • Main analysis used logistic regression models with lesion- and endoscopist-specific random effects via lme4, estimating four odds-ratio endpoints: influence of AI, diagnostic accuracy, effectiveness, and safety. The study was preregistered.

Limitations

  • The paper does not include a dedicated limitations section. Evident from the text: the sample was 21 endoscopists using one AI device in one clinical domain (colonoscopy optical diagnosis), limiting generalizability.
  • AI accuracy depended on interpretation of its dynamic output: human-interpreted standard accuracy was 84.9% but 72.9% when “uncertain” or “not sure/not notice” outputs were counted as errors; automated interpretation gave 84.5% excluding “uncertain” and 79.3% including it.
  • The AI device was non-transparent about its reasons, and the authors note that absence of algorithmic transparency did not disrupt performance; this leaves the mechanisms by which endoscopists inferred AI reliability only indirectly examined.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.1038/s41598-022-18751-2

Cites

48 of 48 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Figures

Figure 1 Left panel: The stimuli used in the experiment were prospectively collected in a real-world clinical setting using an ai medical device supporting mds for lesion detection (cade) and categorization (cadx) as adenomatous or non-adenomatous24. Right panel: An international group of endoscopists were asked to optically diagnose the same set of lesions, presented as short video clips, in two experimental sessions. In the first session (top-right panel) the ai only highlights the target lesion, while in the second session (bottom-right panel) ai also dynamically offers an optical diagnosis. For more details on the ai device see Appendix A.1.2.
Figure 1 Left panel: The stimuli used in the experiment were prospectively collected in a real-world clinical setting using an ai medical device supporting mds for lesion detection (cade) and categorization (cadx) as adenomatous or non-adenomatous24. Right panel: An international group of endoscopists were asked to optically diagnose the same set of lesions, presented as short video clips, in two experimental sessions. In the first session (top-right panel) the ai only highlights the target lesion, while in the second session (bottom-right panel) ai also dynamically offers an optical diagnosis. For more details on the ai device see Appendix A.1.2.CC BY · PubMed Central
Figure 2 md-ai team. An endoscopist subject to under-reliance discounts the added information given by the ai (a). An endoscopist subject to over-reliance supinely accepts the ai suggestion (b). The optimal use of ai should rest on an in-between, well-calibrated approach where the endoscopist uses the ai opinion for coherently revising their confidence in their initial evaluation. In this way, the medical decision-making process would benefit from a collaboration between the two intelligences (c).
Figure 2 md-ai team. An endoscopist subject to under-reliance discounts the added information given by the ai (a). An endoscopist subject to over-reliance supinely accepts the ai suggestion (b). The optimal use of ai should rest on an in-between, well-calibrated approach where the endoscopist uses the ai opinion for coherently revising their confidence in their initial evaluation. In this way, the medical decision-making process would benefit from a collaboration between the two intelligences (c).CC BY · PubMed Central
Figure 3 Influence of the ai: alluvial diagrams representing changes in endoscopist’s opinion between the two sessions as a function of perceived ai response.
Figure 3 Influence of the ai: alluvial diagrams representing changes in endoscopist’s opinion between the two sessions as a function of perceived ai response.CC BY · PubMed Central

Verification

Claims the paper makes

31 Own result · 10 Own interpretation · 8 Own method · 8 No basis given · 3 Supported · 3 Partly supported · 3 Not checked yet · 2 Supported so far · 1 Couldn’t confirm · 1 No full text of the sources · accuracy not yet measured

  • Probably not a substantial claim. 17
  • It may state two separate claims as one. 16
  • The quote only partly states this claim. 2
31 of 31
  • The paper relies on this without support.

    No previous experimental study addressed the inner dynamics of AI-supported MDs' beliefs revision.

    “To our knowledge, no previous experimental study addressed the inner dynamics of ai-supported mds’ beliefs revision.”
  • The paper relies on this without support.

    The critical parameters collected (MDs' opinion, confidence, interpretation of AI output, and perceived reliability of each AI advice) were ignored in previous studies on AI medical devices.

    “These parameters were ignored in previous studies on ai medical devices.”
  • The paper relies on this without support.

    A Bayesian decision-maker that weighs each opinion over its estimated reliability is an appropriate normative model for how endoscopists should integrate their own opinion with the ai's.

    “An intuitive Bayesian decision-maker would weigh each opinion over its estimated reliability.”
  • The paper relies on this without support.

    Endoscopists' optical diagnosis is a psychological categorization process in which confidence is revised in a Bayesian-like manner.

    “Endoscopists’ optical diagnosis is a psychological categorization process.”
4 of 4

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Citations

Cites

Show all 46 references

Research works printed but not linked: 1

  1. Griffiths, T. L., Kemp, C. & Tenenbaum, J. B. Bayesian models of cognition. In The Cambridge Handbook of Computational Psychology (Cambridge University Press, 2008).

Cited by

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Metadata

Authors
Reverberi, C., Rigon, T., Solari, A., Hassan, C., Cherubini, P., GI Genius CADx Study Group, Antonelli, G., Awadie, H., Bernhofer, S., Carballal, S., Dinis-Ribeiro, M., Fernández-Clotett, A., Esparrach, G. F., Gralnek, I., Higasa, Y., Hirabayashi, T., Hirai, T., Iwatate, M., Kawano, M., Mader, M., Maieron, A., Mattes, S., Nakai, T., Ordas, I., Ortigão, R., Zúñiga, O. O., Pellisé, M., Pinto, C., Riedl, F., Sánchez, A., Steiner, E., Tanaka, Y., & Cherubini, A.
Affiliations
  • University of Milano-Bicocca (IT)
  • Humanitas University (IT)
  • University of Pavia (IT)
  • Emek Medical Center (IL)
  • Universitätsklinikum St. Pölten (AT)
  • IPO Porto (PT)
  • Hyogo Prefectural Cancer Center (JP)
  • Sugita Genpaku Memorial Obama Municipal Hospital (JP)
  • Japanese Red Cross Kobe Hospital (JP)
  • Kobe University Hospital (JP)
Corresponding author
  • Reverberi, Carlo
  • Cherubini, Andrea
Venue
Scientific Reports
Published
2022-09-02
Volume
12
Issue
1
Pages
14952-14952
ISSN
2045-2322 (ISSN-L)
OpenAlex
W4294243134
Cited by
281
References
46
Citations by year
2026: 103 · 2025: 99 · 2024: 47 · 2023: 30 · 2022: 1
FWCI
12.59
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • Research Square (submittedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • BOA (University of Milano-Bicocca) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • ARCA (Università Ca' Foscari Venezia) (submittedVersion, cc-by-nc-nd)
Topics
  • Health Sciences › Medicine › Health Informatics › Artificial Intelligence in Healthcare and Education
  • Social Sciences › Human Factors and Ergonomics › Human-Automation Interaction and Safety
  • Health Sciences › Medicine › Family Practice › Clinical Reasoning and Diagnostic Skills
Keywords
human-AI collaboration, clinical decision-making, colonoscopy, endoscopists, AI-assisted diagnosis, lesion classification, trust in AI, Bayesian integration, reliability estimation, deep learning
MeSH terms
Clinical Decision-Making, Artificial Intelligence, Bayes Theorem, Humans

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