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Writer's pictureDr. Salome Masghati, MD

Is Your Heart Healthy? What You Need to Know About the CAC Score and CCTA Test

When it comes to heart health, prevention is key. Most women who have a history of insulin resistance, high lipids or family history of heart disease are at higher risk for Cardiovascular disease, especially after their hormones decline in menopause.


Having insights into coronary artery disease can empower you to make informed choices for your well-being. Today, we’ll focus on two essential tools: the Coronary Artery Calcium (CAC) score and the Coronary CT Angiogram (CCTA) test. Let’s explore how these tests can help you enhance your heart health!


Understanding the CAC Score


The CAC score is a test that employs a specialized CT scan to assess the amount of calcified plaque in your coronary arteries—important vessels that supply blood to your heart.


Plaque, composed of cholesterol, fat, calcium, and other substances, can build up over time, leading to hardened arteries. This calcified plaque can narrow or block the arteries, increasing the risk of heart disease, heart attacks, and strokes. Statistics show that individuals with a CAC score of 100 or higher face a 5 to 10 times greater risk of a heart attack compared to those with a score of 0.


CAC Score Chart
CAC Score Ranges

CAC scores range from 0 to over 1000:

  • 0: No detectable calcium, indicating a low risk of heart disease.

  • 1-100: Small amounts of calcified plaque signal a mild risk.

  • 100 or higher: Higher amounts of calcified plaque indicate a moderate to severe risk for heart disease.


Knowing your CAC score can be crucial in managing your cardiovascular health effectively!


A Look at CAC Score Limitations


While the CAC score is valuable, it’s important to acknowledge its limitations. The CAC test only measures calcified plaque, leaving out non-calcified plaque that may also contribute to heart attacks. Studies suggest that around 50% of heart attacks occur in individuals with low or zero CAC scores, highlighting the need for further evaluation.


This is where the CCTA test becomes vital, as it provides a fuller picture of your coronary arteries.


Exploring the CCTA Test


The CCTA is a specialized CT scan that allows doctors to visualize coronary arteries in detail. Unlike the CAC score, the CCTA can identify both calcified and non-calcified plaque.


During a CCTA test, a contrast dye is injected into your bloodstream, enhancing the clarity of your artery images. The result is a comprehensive view that reveals the extent of plaque buildup, the location of blockages, and any narrowing (stenosis) in the arteries. Research shows that CCTA has a 96% sensitivity rate in detecting significant coronary artery disease, making it a powerful diagnostic tool.


How Cleerly Transforms CCTA Analysis


Cleerly is changing how we analyze CCTA data. The company utilizes artificial intelligence to enhance the interpretation of scan results, leading to more accurate assessments of plaque types.


Cleerly’s AI technology examines extensive amounts of scan data, helping to uncover patterns and insights that might be overlooked in traditional assessments. This not only improves diagnostic accuracy but also facilitates timely interventions when necessary.


AI in CCTA
AI Enhancing CCTA Analysis

The Importance of Getting Tested


Now that you understand the CAC score and CCTA, let’s discuss why these tests matter. The advantages are significant:


  1. Proactive Health Management: A clear CAC score can guide lifestyle choices and prevent heart disease before symptoms develop.


  2. Tailored Treatment Plans: If CCTA shows substantial plaque buildup, your doctor can create a customized treatment strategy focused on your unique needs.


  3. Peace of Mind: Understanding your heart health can significantly reduce anxiety about potential heart issues.


  4. Early Detection: Catching problems early through these tests can help you avoid severe complications later on.


Communicating with Your Doctor


If you have risk factors for heart disease—such as family history, lifestyle habits, or health conditions—it’s crucial to talk to your healthcare provider about testing options. Here’s how to navigate that conversation:


  • Share Your Concerns: Be open about your worries regarding heart disease and your interest in testing.


  • Discuss Risk Factors: Your doctor can provide context about your specific risk factors and whether a CAC score or CCTA test is appropriate for you.


  • Ask About Follow-Up: If testing is recommended, inquire about what to expect during the procedure, recovery, and timelines for receiving results.


Taking Charge of Your Heart Health


Maintaining heart health is vital for a fulfilling life. Understanding the significance of the CAC score and CCTA gives you the tools to make proactive decisions regarding your cardiovascular health.


Whether you're passionate about wellness or just starting your journey, these tests can deliver critical insights into your heart’s condition.


So, are you ready to be proactive about your heart health? Reach out to your healthcare provider to see if these tests are suitable for you.


Your heart deserves the best care possible—let’s work together to achieve that!



Knowledge is a powerful instrument for better health. Taking the time to understand your heart can lead to a healthier future, not just for you but for your loved ones as well.




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