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Effect of Coronary Artery Calcification Score by Lifestyle and Correlation With Coronary Artery Stenosis by Multidetector Computed Tomography

Lee, Sang-Hong; Cho, Jae-Hwan PhD; Kim, Hee-Eun PhD; Kim, Sung-Chul PhD

Journal of Computer Assisted Tomography: March/April 2017 - Volume 41 - Issue 2 - p 236–241
doi: 10.1097/RCT.0000000000000497
Cardiothoracic Imaging

Objective This study examined the effect of coronary artery calcification score by lifestyle and correlation with coronary artery stenosis in persons who underwent coronary artery computed tomography (CT) angiography among health examinees for heart diseases in Korea.

Methods and Materials The study included 506 subjects (256 men and 250 women) who underwent coronary artery CT angiography among health examines for heart diseases at the Incheon Branch of the Korea Association of Health Promotion between January 2, 2014, and December 31, 2014. The demographical variables of the subjects were determined by frequency analysis, and the difference by sex was compared and analyzed using χ2 independence test. Independent 2-sample t test was performed to determine any difference in main factors by coronary artery calcification.

Results According to the results, 175 (34.6%) had calcification, men showed statistically higher scores than women, and calcification seemed higher in those who were older, taller, heavier, and thicker in waist. Regarding blood pressure, calcification was shown if contraction phase and relaxation blood pressure was higher, blood sugar before meal was higher, and neutral fat was higher. By lifestyle, calcification seemed to be higher in those with more alcohol drinking per week, long past smoking years, and higher smoking amount per day in the past and present. In addition, coronary artery stenosis rate showed statistical correlation with calcification from the left anterior descending artery, right coronary artery, left circumflex artery, and left main coronary artery in sequence.

Conclusions In conclusion, coronary artery calcification score CT is deemed to be a suitable method for the estimation of coronary artery stenosis with short examination time, low radiation exposure, and noninvasive method.

From the *Korea Association of Health Promotion Medicheck, Incheon; †Department of Radiological Technology, Ansan University, Ansan; and Departments of ‡Dental Hygiene and §Radiological Science, Gachon University Medical Campus, Incheon, Republic of Korea.

Received for publication April 21, 2016; accepted May 31, 2016.

Correspondence to: Sung-Chul Kim, PhD, Department of Radiological Science, Gachon University Medical Campus, Yeonsugu, Incheon 406-799, Republic of Korea (e-mail:

The authors declare no conflict of interest.

Copyright © 2017 Wolters Kluwer Health, Inc. All rights reserved.