Should We Screen Asymptomatic Patients with Coronary CT?
- 3 days ago
- 1 min read
Coronary CT has become one of the most powerful imaging technologies for cardiovascular risk assessment. However, an important clinical question remains: Should Coronary CT Angiography (CCTA) be used routinely to screen asymptomatic individuals, or does Coronary Artery Calcium (CAC) scanning already provide sufficient information for preventive care?
This presentation reviews the current evidence comparing CAC scoring and CCTA in primary prevention, examining their predictive performance, clinical value, cost-effectiveness, and impact on patient management. While CCTA provides detailed visualization of coronary plaque morphology, non-calcified plaque, stenosis, and other high-risk features, the available evidence suggests that its incremental benefit over CAC alone remains relatively modest for broad population screening, particularly among individuals with a CAC score of zero.
Drawing on data from major studies—including SCAPIS, CONFIRM, SCOT-HEART, and other contemporary investigations—the presentation argues that CAC remains the most practical, scalable, and cost-effective first-line screening tool for asymptomatic adults. Rather than replacing CAC, CCTA may provide its greatest value in carefully selected higher-risk individuals, especially those with elevated CAC scores where plaque characterization can meaningfully influence treatment decisions and preventive strategies.
The presentation concludes by proposing a CAC-first screening strategy, followed by selective CCTA only when additional plaque characterization is likely to change clinical management. This approach aims to maximize diagnostic value while minimizing unnecessary cost, contrast exposure, radiation, and downstream testing, ultimately supporting a more evidence-based and efficient model of cardiovascular prevention.
Download the complete presentation below to explore the latest evidence comparing CAC and CCTA, review the major clinical trials, and understand the evolving role of coronary CT in preventive cardiology.
Comments