The DOI matches its Crossref record; 109 of the 109 references it cites were found in a registry or an index.
A comparison of deep learning performance against health-care professionals in detecting diseases from medical imaging: a systematic review and meta-analysis
Open accessAbstract
BACKGROUND: Deep learning offers considerable promise for medical diagnostics. We aimed to evaluate the diagnostic accuracy of deep learning algorithms versus health-care professionals in classifying diseases using medical imaging. METHODS: In this systematic review and meta-analysis, we searched Ovid-MEDLINE, Embase, Science Citation Index, and Conference Proceedings Citation Index for studies published from Jan 1, 2012, to June 6, 2019. Studies comparing the diagnostic performance of deep learning models and health-care professionals based on medical imaging, for any disease, were included. We excluded studies that used medical waveform data graphics material or investigated the accuracy of image segmentation rather than disease classification. We extracted binary diagnostic accuracy data and constructed contingency tables to derive the outcomes of interest: sensitivity and specificity. Studies undertaking an out-of-sample external validation were included in a meta-analysis, using a unified hierarchical model. This study is registered with PROSPERO, CRD42018091176. FINDINGS: Our search identified 31 587 studies, of which 82 (describing 147 patient cohorts) were included. 69 studies provided enough data to construct contingency tables, enabling calculation of test accuracy, with sensitivity ranging from 9·7% to 100·0% (mean 79·1%, SD 0·2) and specificity ranging from 38·9% to 100·0% (mean 88·3%, SD 0·1). An out-of-sample external validation was done in 25 studies, of which 14 made the comparison between deep learning models and health-care professionals in the same sample. Comparison of the performance between health-care professionals in these 14 studies, when restricting the analysis to the contingency table for each study reporting the highest accuracy, found a pooled sensitivity of 87·0% (95% CI 83·0-90·2) for deep learning models and 86·4% (79·9-91·0) for health-care professionals, and a pooled specificity of 92·5% (95% CI 85·1-96·4) for deep learning models and 90·5% (80·6-95·7) for health-care professionals. INTERPRETATION: Our review found the diagnostic performance of deep learning models to be equivalent to that of health-care professionals. However, a major finding of the review is that few studies presented externally validated results or compared the performance of deep learning models and health-care professionals using the same sample. Additionally, poor reporting is prevalent in deep learning studies, which limits reliable interpretation of the reported diagnostic accuracy. New reporting standards that address specific challenges of deep learning could improve future studies, enabling greater confidence in the results of future evaluations of this promising technology. FUNDING: None.
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In the citing paper
“The use of artificial intelligence (AI) in health care has seen remarkable growth in the past 5 years, with several publications reporting that medical AI models can perform as well as or better than clinicians across a number of tasks and specialties;1–3”
From Randomised controlled trials evaluating artificial intelligence in clinical practice: a scoping review (2024) · cites this paper as [2]
In the citing paper
“The use of artificial intelligence (AI) in health care has seen remarkable growth in the past 5 years, with several publications reporting that medical AI models can perform as well as or better than clinicians across a number of tasks and specialties;1–3”
From Randomised controlled trials evaluating artificial intelligence in clinical practice: a scoping review (2024) · cites this paper as [2]
In the citing paper
“Crucial to this is the process for handling and selecting input data, which is sometimes underspecified and poorly reported.1”
From The medical algorithmic audit (2022) · cites this paper as [1]
In the citing paper
“This aligns with broader meta-analytic observations that AI performance frequently approaches but does not surpass specialist-level interpretation5,10-12.”
From Structural error asymmetry and harm-weighted analysis of ChatGPT versus ICU Physicians in acid–base interpretation: a prospective observational study (2026) · cites this paper as [5]
In the citing paper
“surpassing the 93.9% specificity reported for disease detection from medical imaging in a prior meta-analysis.67”
From Assessing the performance of artificial intelligence models in evaluating inflammatory skin disease severity: a systematic review and meta-analysis (2025) · cites this paper as [67]
In the citing paper
“First, the majority of studies comparing efficiency of AI vs. clinicians are found to have unreliable design and known to lack primary replication, i.e., the validation of the algorithms developed in samples coming from other sources than the one used to train algorithms (45).”
From Artificial Intelligence in Medicine: Today and Tomorrow (2020) · cites this paper as [45]
In the citing paper
“furthermore, only one thousandth of the papers that were reviewed validated their results by having algorithms diagnose medical imaging coming from other source populations.”
From Artificial Intelligence in Medicine: Today and Tomorrow (2020) · cites this paper as [45]
In the citing paper
“although deep learning seems to be as efficient as radiologist for diagnosis, the authors pointed that 99% of studies were found not to have a reliable design”
From Artificial Intelligence in Medicine: Today and Tomorrow (2020) · cites this paper as [45]
In the citing paper
“As recent studies have indicated (45), however, comparisons frequently occur between artificial intelligence solutions and physicians, as if the two counterparts were in competition.”
From Artificial Intelligence in Medicine: Today and Tomorrow (2020) · cites this paper as [45]
In the citing paper
“although deep learning seems to be as efficient as radiologist for diagnosis, the authors pointed that 99% of studies were found not to have a reliable design”
From Artificial Intelligence in Medicine: Today and Tomorrow (2020) · cites this paper as [45]
In the citing paper
“The candidate items were also informed by findings from a previous systematic review that evaluated the diagnostic accuracy of deep-learning systems for medical imaging25.”
From Reporting guidelines for clinical trial reports for interventions involving artificial intelligence: the CONSORT-AI extension (2020) · cites this paper as [25]
In the citing paper
“It has been recognized that most recent AI studies are inadequately reported and existing reporting guidelines do not fully cover potential sources of bias specific to AI systems25.”
From Reporting guidelines for clinical trial reports for interventions involving artificial intelligence: the CONSORT-AI extension (2020) · cites this paper as [25]
In the citing paper
“The welcome emergence of RCTs seeking to evaluate newer interventions based on, or including, an AI component (called ‘AI interventions’ here)23,26–31 has similarly been met with concerns about the design and reporting25,32–34.”
From Reporting guidelines for clinical trial reports for interventions involving artificial intelligence: the CONSORT-AI extension (2020) · cites this paper as [25]
In the citing paper
“The candidate items were also informed by findings from a previous systematic review that evaluated the diagnostic accuracy of deep-learning systems for medical imaging17.”
From Guidelines for clinical trial protocols for interventions involving artificial intelligence: the SPIRIT-AI extension (2020) · cites this paper as [17]
In the citing paper
“It has been recognized that most recent AI studies are inadequately reported and existing reporting guidelines do not fully cover potential sources of bias specific to AI systems17.”
From Guidelines for clinical trial protocols for interventions involving artificial intelligence: the SPIRIT-AI extension (2020) · cites this paper as [17]
In the citing paper
“It has been recognized that most recent AI studies are inadequately reported and existing reporting guidelines do not fully cover potential sources of bias specific to AI systems17.”
From Guidelines for clinical trial protocols for interventions involving artificial intelligence: the SPIRIT-AI extension (2020) · cites this paper as [17]
In the citing paper
“of randomized controlled trials seeking to evaluate the clinical efficacy of newer interventions based on, or including, an AI component (called ‘AI interventions’ here)15,18–23 has similarly been met with concerns about design and reporting17,24–26.”
From Guidelines for clinical trial protocols for interventions involving artificial intelligence: the SPIRIT-AI extension (2020) · cites this paper as [17]
In the citing paper
“AI introduces several additional potential sources of bias that are currently not always reported by study authors or accounted for by existing guidelines 27 .”
From The STARD-AI reporting guideline for diagnostic accuracy studies using artificial intelligence (2025) · cites this paper as [27]
In the citing paper
“The diagnostic AI literature illustrates this gap: systematic reviews have documented limitations in study design, reporting standards, risk of bias, and claims about performance compared with clinicians [5,6].”
From The AI Hospital Formulary: A Practical Governance Framework for Prescribing, Monitoring, and Deprescribing Artificial Intelligence in Hospitals (2026) · cites this paper as [6]
In the citing paper
“However, the diagnostic accuracy of DL is uncertain.”
From Diagnostic accuracy of deep learning in medical imaging: a systematic review and meta-analysis (2021) · cites this paper as [13]
In the citing paper
“Moreover, it is noted that there has been no overarching medical specialty-specific meta-analysis assessing diagnostic accuracy of DL performance, particularly in ophthalmology, respiratory medicine and breast surgery, which have the most diagnostic studies to date13.”
From Diagnostic accuracy of deep learning in medical imaging: a systematic review and meta-analysis (2021) · cites this paper as [13]
In the citing paper
“Even within seminal studies in the field, there remains wide variation in design, methodology and reporting that limits the generalisability and applicability of their findings13.”
From Diagnostic accuracy of deep learning in medical imaging: a systematic review and meta-analysis (2021) · cites this paper as [13]
In the citing paper
“Furthermore, the inconsistent terminology led to difficulties understanding whether an independent external test set was used to test diagnostic performance13.”
From Diagnostic accuracy of deep learning in medical imaging: a systematic review and meta-analysis (2021) · cites this paper as [13]
In the citing paper
“Moreover, some studies only reported metrics, such as dice coefficient, F1 score, competition performance metric and Top-1 accuracy that are often used in computer science, but may be unfamiliar to clinicians13.”
From Diagnostic accuracy of deep learning in medical imaging: a systematic review and meta-analysis (2021) · cites this paper as [13]
In the citing paper
“Furthermore, application of the same test dataset for diagnostic performance assessment of DL algorithms versus healthcare professionals was identified in only select studies13.”
From Diagnostic accuracy of deep learning in medical imaging: a systematic review and meta-analysis (2021) · cites this paper as [13]
In the citing paper
“Therefore, although some of these methods achieved good performance using the intra-patient scheme, their results are unreliable because their evaluation process was biased [17].”
From Deep Learning for Improving the Effectiveness of Routine Prenatal Screening for Major Congenital Heart Diseases (2022) · cites this paper as [17]
In the citing paper
“The results obtained following previous research using the DL method from fetal US images can help increase the detection of fetal heart abnormalities compared to human experts [10,17,18,24].”
From Deep Learning for Improving the Effectiveness of Routine Prenatal Screening for Major Congenital Heart Diseases (2022) · cites this paper as [17]
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Self-citation
Metadata
- Authors
- Liu, X., Faes, L., Kale, A. U., Wagner, S. K., Fu, D. J., Bruynseels, A., Mahendiran, T., Moraes, G., Shamdas, M., Kern, C., Ledsam, J. R., Schmid, M. K., Balaskas, K., Topol, E. J., Bachmann, L. M., Keane, P. A., & Denniston, A. K.
- Affiliations
- University Hospitals Birmingham NHS Foundation Trust (GB)
- Moorfields Eye Hospital NHS Foundation Trust (GB)
- University of Birmingham (GB)
- Google DeepMind (United Kingdom) (GB)
- Luzerner Kantonsspital (CH)
- Scripps Research Institute (US)
- Medignition (Switzerland) (CH)
- Corresponding author
- Denniston, Alastair K
- ORCID
- Venue
- The Lancet Digital Health
- Publisher
- Elsevier BV
- Published
- 2019-10
- Volume
- 1
- Issue
- 6
- Pages
- e271-e297
- ISSN
- 2589-7500 (ISSN-L)
- OpenAlex
- W2976398475
- Cited by
- 1,883
- References
- 109
- Citations by year
- 2026: 287 · 2025: 273 · 2024: 305 · 2023: 287 · 2022: 258 · 2021: 269 · 2020: 184 · 2019: 20
- FWCI
- 8.73
- Type
- journal article
- Language
- en
- Update notices
- erratum (2019-11-01)
- Open access
- gold
- doi.org
- Licence
- Locations
- The Lancet Digital Health (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- UCL Discovery (University College London) (submittedVersion)
- University of Birmingham Research Portal (University of Birmingham) (submittedVersion, other-oa)
- Funders
- National Institute for Health Research
- Topics
- Health Sciences › Medicine › Health Informatics › Artificial Intelligence in Healthcare and Education
- Physical Sciences › Computer Science › Artificial Intelligence › AI in cancer detection
- Health Sciences › Health Professions › Health Information Management › Artificial Intelligence in Healthcare
- Keywords
- deep learning, healthcare workers, diagnostic accuracy, diagnostic imaging, disease classification, sensitivity and specificity, external validation, artificial intelligence in healthcare, diagnostic performance comparison
- MeSH terms
- Deep Learning, Diagnostic Imaging, Health Personnel, Humans
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- Liu, X., Faes, L., Kale, A. U., Wagner, S. K., Fu, D. J., Bruynseels, A., Mahendiran, T., Moraes, G., Shamdas, M., Kern, C., Ledsam, J. R., Schmid, M. K., Balaskas, K., Topol, E. J., Bachmann, L. M., Keane, P. A., & Denniston, A. K. (2019). A comparison of deep learning performance against health-care professionals in detecting diseases from medical imaging: a systematic review and meta-analysis. The Lancet Digital Health. https://doi.org/10.1016/s2589-7500(19)30123-2
