Cited by 45Cardiac Imaging and DiagnosticsArtificial Intelligence in Healthcare and EducationArtificial Intelligence in Healthcare

Artificial intelligence applied to coronary artery calcium scans (AI-CAC) significantly improves cardiovascular events prediction

Open access
Naghavi, Morteza, Reeves, Anthony P., Atlas, Kyle, Zhang, Chenyu, Atlas, Thomas, Henschke, Claudia I., Yankelevitz, David F., Budoff, Matthew J. +13 more·2024·npj Digital Medicine

Published version of a preprint

Abstract

Background: Coronary artery calcium (CAC) scans contain valuable information beyond the Agatston Score which is currently reported for predicting coronary heart disease (CHD) only. We examined whether new artificial intelligence (AI) algorithms applied to CAC scans may provide significant improvement in prediction of all cardiovascular disease (CVD) events in addition to CHD, including heart failure, atrial fibrillation, stroke, resuscitated cardiac arrest, and all CVD-related deaths. Methods: We applied AI-enabled automated cardiac chambers volumetry and automated calcified plaque characterization to CAC scans (AI-CAC) of 5830 individuals (52.2% women, age 61.7±10.2 years) without known CVD that were previously obtained for CAC scoring at the baseline examination of the Multi-Ethnic Study of Atherosclerosis (MESA). We used 15-year outcomes data and assessed discrimination using the time-dependent area under the curve (AUC) for AI-CAC versus the Agatston Score. Results: During 15 years of follow-up, 1773 CVD events accrued. The AUC at 1-, 5-, 10-, and 15-year follow up for AI-CAC vs Agatston Score was (0.784 vs 0.701), (0.771 vs. 0.709), (0.789 vs.0.712) and (0.816 vs. 0.729) (p<0.0001 for all), respectively. The category-free Net Reclassification Index of AI-CAC vs. Agatston Score at 1-, 5-, 10-, and 15-year follow up was 0.31, 0.24, 0.29 and 0.29 (p<.0001 for all), respectively. AI-CAC plaque characteristics including number, location, and density of plaque plus number of vessels significantly improved NRI for CAC 1-100 cohort vs. Agatston Score (0.342). Conclusion: In this multi-ethnic longitudinal population study, AI-CAC significantly and consistently improved the prediction of all CVD events over 15 years compared with the Agatston score.

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  • AI-CAC could support evolution toward a more informative, physiologically grounded CAC score, preserving clinical familiarity and, combined with radiomics features or additional image-derived markers such as epicardial adipose tissue, cardiac chamber volumetry, as well as complementary biomarkers such as thoracic aortic calcification and body composition markers if these are shown to be predictive

    “AI-CAC could support evolution toward a more informative, physiologically grounded CAC score, preserving clinical familiarity and, combined with radiomics features or additional image-derived markers such as epicardial adipose tissue, cardiac chamber volumetry, as well as complementary biomarkers such as thoracic aortic calcification and body composition markers if these are shown to be predictive”

    From Prognostication and clinical opportunities with AI for coronary artery calcium: a scoping review (2026) · cites this paper as [55]

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  • AI-CAC enables scalable assessment of vessel-specific calcium burden and plaque density and composition.

    “In this context, AI-CAC enables scalable assessment of vessel-specific calcium burden and plaque density and composition.55”

    From Prognostication and clinical opportunities with AI for coronary artery calcium: a scoping review (2026) · cites this paper as [55]

    The Methods section (page unavailable) reports plaque location, density, number of plaques, and number of vessels affected. It does not report vessel-specific calcium burden or plaque composition: the study used calcified-plaque characteristics only, and its MESA-1 plaque reports were prepared manually, so scalable assessment of those features is not established. (LLM, conf=0.88)

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  1. [22]Naghavi M, Yankelevitz D, Reeves AP, et al. AI-enabled left atrial volumetry in coronary artery calcium scans (AI-CACTM) predicts atrial fibrillation as early as one year, improves CHARGE-AF, and outperforms NT-proBNP: The multi-ethnic study of atherosclerosis. J Cardiovasc Comput Tomogr. 2024;18:383–391. PMC11216863 38653606

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Authors
Naghavi, M., Reeves, A. P., Atlas, K., Zhang, C., Atlas, T., Henschke, C. I., Yankelevitz, D. F., Budoff, M. J., Li, D., Roy, S. K., Nasir, K., Molloi, S., Fayad, Z., McConnell, M. V., Kakadiaris, I., Maron, D. J., Narula, J., Williams, K., Shah, P. K., Levy, D., & Wong, N. D.
Affiliations
  • Cornell University (US)
  • Laboratory for Research on Enterprise and Decisions (TN)
  • Mount Sinai Hospital (US)
  • The Lundquist Institute (US)
  • Houston Methodist (US)
  • University of California, Irvine (US)
  • Stanford Medicine (US)
  • The University of Texas Health Science Center at Houston (US)
  • Cedars-Sinai Medical Center (US)
  • National Institutes of Health (US)
Corresponding author
Naghavi, Morteza
Venue
npj Digital Medicine
Published
2024-11-05
Volume
7
Issue
1
Pages
309-309
ISSN
2398-6352 (ISSN-L)
OpenAlex
W4404060993
Cited by
45
References
36
Citations by year
2026: 25 · 2025: 18 · 2024: 2
FWCI
11.46
Type
journal article
Language
en
Open access
Locations
  • npj Digital Medicine (publishedVersion, cc-by-nc-nd)
  • Research Square (acceptedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by-nc-nd)
  • PubMed Central (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • U.S. Department of Health and Human Services (UL1-TR-000040, N01-HC-95159, UL1TR001079, N01-HC-95161, N01-HC-95168, UL1TR001420, N01-HC-95160, N01HC95169, N01-HC-95164, N01-HC-95162, N01-HC-95167, HHSN268201500003I, N01-HC-95165, N01-HC-95163, N01HC95166)
  • National Institutes of Health (75N92020D00005, n01hc095162-003, 75N92020D00003, UL1TR001420, n01hc095159-004, N01-HC- 95166, n01hc095160-004, 75N92020D00006, N01-HC9-5168, 75N92020D00001 ,, n01hc095167-003, 5r42ar070713-03, n01hc095165-005, N01-HC- 95159, n01hc095161-004, n01hc095166-004, UL1TR001079, HHSN268201500003I, 75N92020D00004, n01hc095168-003, n01hc095163-003, 75N92020D00007, n01hc095169-004, UL1TR000040, 75N92020D00002, n01hc095164-003, UL1-TR-, N01‐HC‐95161, N01- HC-95163, N01- HC-95165, N01‐HC‐95160, N01 HC95164, N01-HC-95167, N01-HC95162, N01‐HC‐95169, 2R42AR070713)
  • National Heart, Lung, and Blood Institute (N01 HC-95159, N01-HC-95160, N01-HC095169, 75N92020D00001, N01 HC-95168, N01-HC-095165, 75N92020D00006, N01 HC95167, (N01-HC-95163, N01 HC095163, 75N92020D00007, 2R42AR070713, N01 HC-95161, N01 HC95165, N01HC95164, 75N92020D00002, N01-HC-095159, N01 HC095168, N01-HC-095162, R01HL146666, N01-HC-095161, 75N92020D00005, HHSN268201500003C, HHSN26820150 0003I, 75N92020D00003, N01 HC095167, N01-HC-095160, N01 HC095166, N01 HC095164, N01‐HC‐95166, N01 HC-95162, 75N92020D00004, N01 HC95169)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (R42 AR070713)
  • National Center for Advancing Translational Sciences (N01-HC-95161, N01-HC-95168, UL1-TR, N01-HC-95162, N01-HC-95159, N01-HC-95160, HHSN268201500003I, N01-HC-95166, N01-HC-95169, N01-HC-95163, N01-HC-95167, N01-HC-95165, N01-HC-95164)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Cardiac Imaging and Diagnostics
  • Health Sciences › Medicine › Health Informatics › Artificial Intelligence in Healthcare and Education
  • Health Sciences › Health Professions › Health Information Management › Artificial Intelligence in Healthcare
Keywords
artificial intelligence, coronary artery calcium, Agatston score, cardiovascular event prediction, coronary artery disease, heart failure, atrial fibrillation, stroke, asymptomatic individuals, Multi-Ethnic Study of Atherosclerosis

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