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Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
Published on: August 28, 2018
Effect of Coronary Artery Calcification Score by Lifestyle and Correlation With Coronary Artery Stenosis by
Sang-Hong Lee1, Jae-Hwan Cho, Hee-Eun Kim
1From 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.
Insights
Coronary artery calcification scores, assessed via computed tomography (CT) angiography, correlate with coronary artery stenosis. Lifestyle factors like alcohol consumption and smoking significantly impact calcification, highlighting its role in heart disease risk assessment.
Area of Science:
- Cardiology
- Radiology
- Preventive Medicine
Background:
- Coronary artery calcification (CAC) is a marker of atherosclerosis.
- Understanding the relationship between CAC, lifestyle, and coronary artery stenosis (CAS) is crucial for cardiovascular risk assessment.
Purpose of the Study:
- To investigate the correlation between CAC score and CAS in Korean health examinees.
- To examine the influence of lifestyle factors on CAC.
Main Methods:
- Retrospective analysis of 506 subjects (256 men, 250 women) who underwent coronary CT angiography.
- Demographic, lifestyle, and clinical data were collected and analyzed using statistical tests (chi-square, t-test).
Main Results:
- Prevalence of CAC was 34.6% (175 subjects).
- Higher CAC scores were associated with male sex, older age, increased height, weight, waist circumference, blood pressure, fasting blood glucose, triglyceride levels, alcohol consumption, and smoking history.
- CAC showed a significant correlation with CAS in major coronary arteries.
Conclusions:
- Coronary CT angiography for CAC scoring is a valuable, noninvasive tool for estimating CAS.
- Lifestyle modifications can potentially reduce CAC and subsequent cardiovascular events.
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 χ 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.
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