Related Experiment Video
Updated: Jul 6, 2026
Semi-Automatic Graphical Tool for Measuring Coronary Artery Spatially Weighted Calcium Score from Gated Cardiac Computed Tomography Images
Published on: September 22, 2023
Effect of patient visualization of coronary calcium by electron beam computed tomography on changes in beneficial
Raza H Orakzai1, Khurram Nasir, Sarwar H Orakzai
1Division of Cardiology, Cedars Sinai Medical Center, Los Angeles, CA, USA.
Insights
Higher coronary artery calcium (CAC) scores, detected by electron beam computed tomography (EBCT), are linked to increased use of aspirin (ASA) therapy, exercise, and healthier diets in asymptomatic individuals. This suggests CAC scoring could boost preventive lifestyle adoption.
Area of Science:
- Cardiology
- Preventive Medicine
- Medical Imaging
Background:
- Lifestyle modifications and aspirin (ASA) therapy are crucial for coronary heart disease (CHD) prevention but are often underutilized.
- Coronary artery calcium (CAC) scoring via electron beam computed tomography (EBCT) is a tool for risk assessment in asymptomatic individuals.
Purpose of the Study:
- To investigate the association between higher CAC scores and the adoption of beneficial lifestyle behaviors, including aspirin use, exercise, and dietary changes, in asymptomatic patients.
- To determine if CAC scoring can enhance the uptake of preventive cardiovascular strategies.
Main Methods:
- A cohort of 980 asymptomatic individuals undergoing EBCT for risk assessment completed a health behavior survey.
- Long-term aspirin utilization, exercise habits, and dietary changes were evaluated.
- Multivariable analysis was used to assess the relationship between baseline CAC scores and lifestyle behaviors, with a mean follow-up of 3 years.
Main Results:
- Aspirin initiation increased progressively with higher CAC scores (29% for CAC=0 to 63% for CAC ≥400; p<0.001).
- Adherence to dietary changes and exercise also showed a positive trend with increasing CAC scores (diet: 33% for CAC=0 to 56% for CAC ≥400; exercise: 44% for CAC=0 to 67% for CAC ≥400; p<0.001 for both).
- Multivariable analysis confirmed a strong association between higher baseline CAC and the initiation of ASA therapy, dietary modifications, and increased exercise.
Conclusions:
- Coronary artery calcium (CAC) scoring is associated with greater utilization of preventive cardiovascular therapies and lifestyle modifications in asymptomatic individuals.
- CAC determination, beyond risk stratification, may serve as a catalyst for improving patient adherence to beneficial health behaviors.
- Integrating CAC scoring into clinical practice could enhance primary and secondary prevention efforts for coronary heart disease.
Abstract:
Despite convincing data demonstrating the benefits of aspirin (ASA), exercise, and dietary changes for both primary and secondary prevention of coronary heart disease, they remain underused. In this study, we assess whether higher coronary artery calcium (CAC) scores determined by electron beam computed tomography (EBCT) are associated with beneficial lifestyle behaviors in asymptomatic individuals. A total of 980 asymptomatic patients referred for EBCT risk assessment by their primary physician were sent a survey questioning them about health behaviors. We evaluated long-term ASA utilization, exercise, and dietary changes based on CAC using multivariable analysis. The study population consisted of 980 individuals (78% men, mean age 60 +/- 8 years) who were followed for a mean of 3 +/- 2 years after an initial EBCT scan. Overall, ASA initiation was lowest (29%) among those with CAC = 0, and gradually increased with higher CAC scores (1 to 99, 55%; 100 to 399, 61%; > or =400, 63%; p <0.001 for trend). Similarly, dietary changes and exercise were lowest (33% and 44%, respectively) among those with CAC = 0 and gradually increased with higher CAC scores (1 to 99, 40%; 100 to 399, 58%; > or =400, 56%; p <0.001 for trend for dietary changes; and 1 to 99, 62%; 100 to 399, 63%; > or =400, 67%; p <0.001 for trend for exercise). In multivariable analysis, greater baseline CAC was strongly associated with initiation of ASA therapy, dietary changes, and increased exercise. In conclusion, in addition to risk stratification of asymptomatic individuals, determination of CAC may also improve utilization of ASA therapy and behavioral modification.
Related Concept Videos
01:25Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
01:26Coronary Artery Disease IV: Preventive Measures
01:27Coronary Artery Disease V: Interprofessional Care
01:28Imaging Studies for Cardiovascular System V: CT
01:26Atherosclerosis III: Management
01:20Imaging Studies for Cardiovascular System III: X-Ray
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...