Coronary Artery Calcium Scoring: How to Understand Your CAC Score in 2025

Coronary calcium score is a simple, non-invasive scan that reveals hidden plaque and helps predict your risk of heart disease. Your cholesterol may look perfect. You may feel healthy. But silently, beneath the surface, plaque can build inside your coronary arteries — and you’d never know it. That’s where the coronary calcium score (CAC score) … Read more

“You Have a 50% Coronary Artery Blockage” — What That Actually Means

I initially set out to write a straightforward blog post explaining what it means when a doctor says you have a 50% coronary artery blockage. It’s a topic that often confuses patients and clinicians, and I thought a clear explanation would be helpful. But as I began drafting, I realized that listing percentages and medical … Read more

Is a Zero Calcium Score Reassuring Enough? Understanding the Warranty Period

Coronary artery calcium (CAC) scoring has quietly become one of the most valuable tools we have in preventive cardiology. It’s quick, non-invasive, relatively inexpensive, and remarkably informative. For those unfamiliar with the test itself, I’ve written an overview explaining what CAC scoring is and how it works— you can read it here. When someone’s CAC … Read more

CT Calcium Score vs. CT Coronary Angiography: Understanding the Difference

Cardiovascular imaging has revolutionized the assessment of heart disease, providing powerful tools to detect and evaluate coronary artery disease (CAD) before it leads to serious complications. Two common heart imaging tests—CT Calcium Scoring (CAC) and CT Coronary Angiography (CCTA)—serve distinct purposes. While both utilize computed tomography (CT) technology, they differ significantly in what they measure, … Read more