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Tzimas G, Gulsin GS, Everett RJ, Akodad M, Meier D, Sewnarain K, Ally Z, Alnamasy R, Ng N, Mullen S, Rotzinger D, Sathananthan J, Sellers SL, Blanke P, Leipsic JA. Age- and Sex-Specific Nomographic CT Quantitative Plaque Data From a Large International Cohort. JACC Cardiovasc Imaging 2024; 17:165-175. [PMID: 37410009 DOI: 10.1016/j.jcmg.2023.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 05/01/2023] [Accepted: 05/10/2023] [Indexed: 07/07/2023]
Abstract
BACKGROUND With growing adoption of coronary computed tomographic angiography (CTA), there is increasing evidence for and interest in the prognostic importance of atherosclerotic plaque volume. Manual tools for plaque segmentation are cumbersome, and their routine implementation in clinical practice is limited. OBJECTIVES The aim of this study was to develop nomographic quantitative plaque values from a large consecutive multicenter cohort using coronary CTA. METHODS Quantitative assessment of total atherosclerotic plaque and plaque subtype volumes was performed in patients undergoing clinically indicated coronary CTA, using an Artificial Intelligence-Enabled Quantitative Coronary Plaque Analysis tool. RESULTS A total of 11,808 patients were included in the analysis; their mean age was 62.7 ± 12.2 years, and 5,423 (45.9%) were women. The median total plaque volume was 223 mm3 (IQR: 29-614 mm3) and was significantly higher in male participants (360 mm3; IQR: 78-805 mm3) compared with female participants (108 mm3; IQR: 10-388 mm3) (P < 0.0001). Total plaque increased with age in both male and female patients. Younger patients exhibited a higher prevalence of noncalcified plaque. The distribution of total plaque volume and its components was reported in every decile by age group and sex. CONCLUSIONS The authors developed pragmatic age- and sex-stratified percentile nomograms for atherosclerotic plaque measures using findings from coronary CTA. The impact of age and sex on total plaque and its components should be considered in the risk-benefit analysis when treating patients. Artificial Intelligence-Enabled Quantitative Coronary Plaque Analysis work flows could provide context to better interpret coronary computed tomographic angiographic measures and could be integrated into clinical decision making.
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Affiliation(s)
- Georgios Tzimas
- Centre for Cardiovascular Innovation and Center for Heart Valve Innovation, St. Paul's and Vancouver General Hospital, Division of Cardiology and Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada; Service of Cardiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Gaurav S Gulsin
- Centre for Cardiovascular Innovation and Center for Heart Valve Innovation, St. Paul's and Vancouver General Hospital, Division of Cardiology and Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Russell J Everett
- Centre for Cardiovascular Innovation and Center for Heart Valve Innovation, St. Paul's and Vancouver General Hospital, Division of Cardiology and Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Mariama Akodad
- Centre for Cardiovascular Innovation and Center for Heart Valve Innovation, St. Paul's and Vancouver General Hospital, Division of Cardiology and Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - David Meier
- Centre for Cardiovascular Innovation and Center for Heart Valve Innovation, St. Paul's and Vancouver General Hospital, Division of Cardiology and Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Kavishka Sewnarain
- Centre for Cardiovascular Innovation and Center for Heart Valve Innovation, St. Paul's and Vancouver General Hospital, Division of Cardiology and Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Zain Ally
- Centre for Cardiovascular Innovation and Center for Heart Valve Innovation, St. Paul's and Vancouver General Hospital, Division of Cardiology and Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Rawan Alnamasy
- Centre for Cardiovascular Innovation and Center for Heart Valve Innovation, St. Paul's and Vancouver General Hospital, Division of Cardiology and Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Nicholas Ng
- Service of Cardiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland; HeartFlow, Mountain View, California, USA
| | | | - David Rotzinger
- Department of Diagnostic Radiology and Interventional Radiology, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Janarthanan Sathananthan
- Centre for Cardiovascular Innovation and Center for Heart Valve Innovation, St. Paul's and Vancouver General Hospital, Division of Cardiology and Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Stephanie L Sellers
- Cardiovascular Translational Laboratory, Centre for Heart Lung Innovation and Providence Research, Vancouver, British Columbia, Canada
| | - Philipp Blanke
- Centre for Cardiovascular Innovation and Center for Heart Valve Innovation, St. Paul's and Vancouver General Hospital, Division of Cardiology and Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jonathon A Leipsic
- Centre for Cardiovascular Innovation and Center for Heart Valve Innovation, St. Paul's and Vancouver General Hospital, Division of Cardiology and Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada.
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