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Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
04:40

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans

Published on: August 28, 2018

15.7K

Coronary artery calcium testing in low-intermediate risk symptomatic patients with suspected coronary artery disease:

Tahir Mahmood1, Michael D Shapiro2

  • 1Center for Preventive Cardiology, Knight Cardiovascular Institute, Oregon Health & Science University, Portland, OR, United States of America.

Plos One
|October 13, 2020
PubMed

Insights

Coronary artery calcium (CAC) scoring can help assess cardiovascular risk in patients with chest pain. A zero CAC score effectively rules out significant coronary artery disease in low-intermediate risk individuals.

Area of Science:

  • Cardiology
  • Radiology
  • Preventive Medicine

Background:

  • Computed tomography (CT) for coronary artery calcium (CAC) quantification is a non-invasive method to assess atherosclerotic plaque burden.
  • CAC is a strong predictor of cardiovascular outcomes and is endorsed by 2018 ACC/AHA Cholesterol Guidelines for intermediate-risk asymptomatic individuals.
  • The role of CAC in symptomatic patients, particularly those with chest pain, is under debate.

Purpose of the Study:

  • To review the evidence for using CAC scoring in low-intermediate risk patients presenting with chest pain.
  • To emphasize the negative predictive value of a zero CAC score in excluding significant coronary artery disease.
  • To evaluate current guidelines, limitations, and future research for CAC in this patient subgroup.

Main Methods:

  • Literature review focusing on studies evaluating CAC in symptomatic patients with chest pain.
  • Analysis of data supporting the negative predictive value of CAC.
  • Evaluation of existing clinical guidelines and research gaps.

Main Results:

  • Growing evidence supports the utility of CAC scoring in symptomatic patients with chest pain.
  • A zero CAC score demonstrates a high negative predictive value for significant coronary artery disease in selected populations.
  • The role of CAC in guiding management decisions for chest pain patients is increasingly recognized.

Conclusions:

  • CAC scoring is a valuable tool for risk stratification in symptomatic patients with chest pain, particularly those at low-intermediate risk.
  • A zero CAC score can confidently rule out obstructive coronary artery disease in the absence of high-risk features.
  • Further research is needed to fully define the role and optimize the application of CAC scoring in symptomatic individuals.

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