Comparing predictive risk to actual presence of coronary atherosclerosis on coronary computed tomography angiography

Figures

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  Fig. 1. Final cohort extraction. PRC indicates Perth Radiological Clinic; CCTA indicates coronary computed tomography angiography; CVD indicates cardiovascular disease.

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  Fig. 2. Distribution of cardiovascular risk score in individuals with and without atherosclerosis. Evidence of atherosclerosis indicates a detected abnormality in coronary computed tomography angiography and/or a non-zero coronary artery calcium score.

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  Fig. 3. Proportion of individuals in each comparison group between cardiovascular risk score and degree of atherosclerosis categories. Category of risk score is “zero” (<1 %), low (1–9 %), moderate (10–15 %), high (>15 %) risk of experiencing a cardiovascular event in 5 years.

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  Fig. 4. Relationship maps comparing degree of atherosclerosis categories and cardiovascular risk score. The red and orange lines represent a mismatch (red = severe, orange = not severe), and the green lines represent a match, between the categories. The line thickness represents the relationship strength (relationship count, the number of patients in that comparison group) and the circles represent categories of each variable, with the size correlating to patient count. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)

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  Fig. 5. Proportions of individuals classified as high risk and low risk, and who had detected atherosclerosis. CVRS indicates cardiovascular risk score, and high-risk is moderate-high (>9 %) and low-risk is zero-low (≤9 %). Created using custom srd software (Roger Marshall, PhD).

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  Fig. 6. Comparison of risk factor count and degree of atherosclerosis categories. Risk factor count is categorized as low (1–2 risk factors), moderate (3–4 risk factors) and high (5–6 risk factors).