Men exhibited significantly higher coronary artery calcium volume than women across all age and race strata, with a mean volume of 59 mm.
This study provides normative percentile distributions of directly measured CAC volume and average mean density across age, sex, and race, which may better contextualize CAC interpretation and risk stratification.
Absolute Event Rate: 0% vs 0%
BACKGROUND: The Agatston score is commonly used for coronary artery calcium (CAC) quantification which integrates calcium volume and density into a single measure. Recent studies suggest CAC volume and mean density offer independent prognostic value. However, normative distributions of these parameters across demographic subgroups are not well characterized. METHODS: A total of 23,844 patients were analyzed who underwent non-contrast ECG-gated cardiac CT at 120 kVp from 2010 to 2023 at our institution. Patients included were older than 35, asymptomatic, and without prior atherosclerotic cardiovascular disease. CAC volume and mean density were directly quantified using a validated deep learning-based software. Participants were stratified by sex, self-reported race (White, Black), and age (in 10-year strata). Percentile distributions were constructed for CAC total volume and average mean density using a LOESS-based approach to account for the zero-inflated nature of the data. Between-group comparisons were conducted with Mann-Whitney U. RESULTS: The cohort (mean age 58 ± 9 years) included 41 % women and 74 % White and 10 % Black participants. Men had significantly higher CAC volume than women across all race/age strata (59 mm CONCLUSION: This analysis provides percentile distributions of directly measured CAC volume and average mean density across age, sex, and race. The data may better contextualize CAC interpretation and risk stratification.
Gershon et al. (Thu,) reported a other. Men exhibited significantly higher coronary artery calcium volume than women across all age and race strata, with a mean volume of 59 mm.