Cited by 252Cardiac Valve Diseases and TreatmentsECG Monitoring and AnalysisArtificial Intelligence in Healthcare

Electrocardiogram screening for aortic valve stenosis using artificial intelligence

Cohen-Shelly, Michal, Attia, Zachi I, Friedman, Paul A, Ito, Saki, Essayagh, Benjamin A, Ko, Wei-Yin, Murphree, Dennis H, Michelena, Hector I +6 more·2021·European Heart Journal

Abstract

Aims: Early detection of aortic stenosis (AS) is becoming increasingly important with a better outcome after aortic valve replacement in asymptomatic severe AS patients and a poor outcome in moderate AS. We aimed to develop artificial intelligence-enabled electrocardiogram (AI-ECG) using a convolutional neural network to identify patients with moderate to severe AS. Methods and results: Between 1989 and 2019, 258 607 adults [mean age 63 ± 16.3 years; women 122 790 (48%)] with an echocardiography and an ECG performed within 180 days were identified from the Mayo Clinic database. Moderate to severe AS by echocardiography was present in 9723 (3.7%) patients. Artificial intelligence training was performed in 129 788 (50%), validation in 25 893 (10%), and testing in 102 926 (40%) randomly selected subjects. In the test group, the AI-ECG labelled 3833 (3.7%) patients as positive with the area under the curve (AUC) of 0.85. The sensitivity, specificity, and accuracy were 78%, 74%, and 74%, respectively. The sensitivity increased and the specificity decreased as age increased. Women had lower sensitivity but higher specificity compared with men at any age groups. The model performance increased when age and sex were added to the model (AUC 0.87), which further increased to 0.90 in patients without hypertension. Patients with false-positive AI-ECGs had twice the risk for developing moderate or severe AS in 15 years compared with true negative AI-ECGs (hazard ratio 2.18, 95% confidence interval 1.90–2.50). Conclusion: An AI-ECG can identify patients with moderate or severe AS and may serve as a powerful screening tool for AS in the community.

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Registry

Crossref · 10.1093/eurheartj/ehab153

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4 of 4 references verified0 citation errors · 0 not checkable

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  • Valvular and composite SHD AI-ECG models are promising for referral enrichment.

    “Valvular and composite SHD models are promising for referral enrichment”
  • At present, AI-ECG is better interpreted as a tool for risk enrichment and follow-up prioritization in selected screening settings than as a stand-alone mandate for structured surveillance or immediate pathway escalation.

    “At present, AI-ECG is better interpreted as a tool for risk enrichment and follow-up prioritization in selected screening settings than as a stand-alone mandate for structured surveillance or immediate pathway escalation.12,19,44,45”
  • In aortic stenosis, patients with positive AI-ECG results but no moderate-to-severe AS at baseline had a higher long-term risk of subsequently developing moderate-to-severe AS, and recent community validation showed a fourfold higher risk of future AS hospitalization among false-positive screens.

    “Analogous findings have been reported in aortic stenosis: patients with positive AI-ECG results but no moderate-to-severe AS at baseline had a higher long-term risk of subsequently developing moderate-to-severe AS, and recent community validation likewise showed a fourfold higher risk of future AS hospitalization among false-positive screens.19,23”
  • In the Mayo Clinic study, a convolutional neural network detected moderate-to-severe AS with an AUC of 0.85, and patients with positive AI-ECG results but no moderate-to-severe AS at baseline had a 2.18-fold higher long-term risk of subsequently developing clinically significant AS.

    “In the Mayo Clinic study, a convolutional neural network detected moderate-to-severe AS with an AUC of 0.85; importantly, patients with positive AI-ECG results but no moderate-to-severe AS at baseline had a 2.18-fold higher long-term risk of subsequently developing clinically significant AS.19”
  • Valvular AI-ECG has moved beyond proof of concept and shows meaningful referral enrichment, but prospective pathway validation remains limited.

    “From a deployment perspective, however, the practical conclusion is narrower: valvular AI-ECG has moved beyond proof of concept and shows meaningful referral enrichment, but prospective pathway validation remains limited.19,23”

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Authors
Cohen-Shelly, M., Attia, Z. I., Friedman, P. A., Ito, S., Essayagh, B. A., Ko, W.-Y., Murphree, D. H., Michelena, H. I., Enriquez-Sarano, M., Carter, R. E., Johnson, P. W., Noseworthy, P. A., Lopez-Jimenez, F., & Oh, J. K.
Affiliations
  • Department of Cardiovascular Medicine, Mayo Clinic , 200 First St SW, Rochester, MN 55905, USA
  • Mayo Clinic (US)
Corresponding author
Oh, Jae K
Venue
European Heart Journal
Published
2021-03-22
Volume
42
Issue
30
Pages
2885-2896
ISSN
  • 0195-668X (ISSN-L)
  • 1522-9645
OpenAlex
W3136799519
Cited by
252
References
4
Citations by year
2026: 45 · 2025: 66 · 2024: 57 · 2023: 41 · 2022: 29 · 2021: 14
FWCI
23.63
Type
journal article
Language
en
Open access
closed
Locations
  • European Heart Journal (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Valve Diseases and Treatments
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › ECG Monitoring and Analysis
  • Health Sciences › Health Professions › Health Information Management › Artificial Intelligence in Healthcare
Keywords
aortic stenosis, electrocardiogram screening, artificial intelligence, convolutional neural networks, early detection, echocardiography, sex differences, age effects, hypertension, false positives, community-based screening
MeSH terms
Adult, Aged, Aortic Valve, Aortic Valve Stenosis, Artificial Intelligence, Electrocardiography, Female, Humans, Male, Mass Screening, Middle Aged, Retrospective Studies, Neural Networks, Computer

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