Coronary artery calcium testing in low-intermediate risk symptomatic patients with suspected coronary artery disease: An effective gatekeeper to further testing?

PLoS One. 2020 Oct 13;15(10):e0240539. doi: 10.1371/journal.pone.0240539. eCollection 2020.

Abstract

Computed tomography for quantification of coronary artery calcium (CAC) is a simple non-invasive tool to assess atherosclerotic plaque burden. CAC is highly correlated with coronary atherosclerosis and is a robust predictor of cardiovascular outcomes. Recently, the 2018 ACC/AHA Cholesterol Guidelines endorsed the use of CAC scores in asymptomatic, intermediate risk individuals where the decision to initiate stain therapy is uncertain. However, whether quantification of CAC may play a role in the assessment of symptomatic individuals remains a matter of debate. In this review, we examine the evidence for the use of CAC in low-intermediate risk patients with chest pain. This appraisal places a particular focus on the growing body of literature supporting the negative predictive value of a CAC score of zero to rule out significant coronary artery disease in those without high-risk features. We also evaluate current guidelines, limitations, and future research directions for CAC scoring in this important subgroup of patients.

Publication types

  • Review

MeSH terms

  • Calcium / analysis*
  • Chest Pain / diagnosis*
  • Chest Pain / etiology
  • Coronary Angiography / methods
  • Coronary Angiography / standards
  • Coronary Artery Disease / complications
  • Coronary Artery Disease / diagnosis*
  • Coronary Disease
  • Coronary Vessels / chemistry
  • Coronary Vessels / diagnostic imaging*
  • Humans
  • Practice Guidelines as Topic
  • Predictive Value of Tests
  • Risk Assessment
  • Risk Factors
  • Tomography, X-Ray Computed / methods
  • Tomography, X-Ray Computed / standards*
  • Tomography, X-Ray Computed / trends

Substances

  • Calcium

Grants and funding

The authors received no specific funding for this work.