Coronary artery calcification on low-dose computed tomography: Comparison of Agatston and Ordinal Scores

Yu Htwe, Matthew D. Cham, Claudia I. Henschke, Harvey Hecht, Joseph Shemesh, Mingzhu Liang, Wei Tang, Artit Jirapatnakul, Rowena Yip, David F. Yankelevitz*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Objective: To compare Agatston with Ordinal Scores for the extent of coronary artery calcification (coronary artery calcium) using nongated low-dose computed tomography (CT) scans. Materials and Methods: A total of 631 asymptomatic participants had CT scans from 2010 to 2013. Their Ordinal and Agatston Score were classified into categories. Results: The Ordinal Score Categories showed excellent agreement (weighted kappa of 0.83; 95% confidence interval: 0.79-0.88) with the Agatston Score Categories. Conclusions: The use of the Ordinal Score is readily obtained on low-dose CT scans that are used for CT screening for lung cancer and these scores are useful for risk stratification of coronary artery disease.

Original languageEnglish
Pages (from-to)799-802
Number of pages4
JournalClinical Imaging
Volume39
Issue number5
DOIs
StatePublished - 1 Sep 2015
Externally publishedYes

Keywords

  • CT screening for lung cancer
  • Coronary artery calcification
  • Nongated low-dose CT scans
  • The Agatston Score
  • The Ordinal Score

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