A CT coronary calcium score is a non-invasive imaging test that measures calcium buildup in your coronary arteries. It helps cardiologists assess your risk of heart disease before symptoms appear. Scores range from 0 to over 400, with higher scores indicating greater risk and a greater need for preventive care.
Heart disease does not always announce itself. Many people feel perfectly fine right up until a serious cardiac event occurs. That is what makes the CT coronary calcium score such a valuable tool — it can reveal hidden arterial changes long before you feel any symptoms, giving you and your cardiologist the chance to act early.
This Brooklyn patient guide explains what the test involves, who it is right for, and what your results actually mean.
What Is a CT Coronary Calcium Score?
A CT coronary calcium score, also called a coronary artery calcium (CAC) scan, is a specialized computed tomography (CT) scan of the heart. It measures how much calcium has accumulated in the walls of your coronary arteries.
Calcium deposits are a sign of atherosclerosis, the gradual buildup of plaque that can narrow the arteries and raise the risk of heart attack. The scan is quick, painless, and does not require dye or contrast material. Most people are in and out within 15 minutes.
Who Should Get a CT Coronary Calcium Score?
Not everyone needs this test. It is most useful for people who fall into an intermediate risk category — those who have some risk factors for heart disease but have not yet been diagnosed with it.
Your cardiologist may recommend a CT coronary calcium score if you have one or more of the following:
- Age: Men 40 to 70, women 50 to 70
- Family history: A parent or sibling diagnosed with heart disease at a young age
- High blood pressure or borderline high cholesterol
- Smoking history, current or past
- Type 2 diabetes or prediabetes
- Obesity or a sedentary lifestyle
The test is typically not recommended for people who have already been diagnosed with heart disease, as it would not change the treatment plan in those cases.
What to Expect During the Procedure
The scan itself is straightforward. You will lie on a table that slides into a CT scanner. The machine takes a series of images of your heart while you hold your breath for a few seconds at a time.
There is no radiation injection and no needles involved. You do not need to fast beforehand in most cases, though your cardiology clinic in Brooklyn will give you specific instructions. Results are usually available within a few days.
How to Understand Your CT Coronary Calcium Score Results
Your score is reported as a number, and each range carries a different level of meaning.
- Score of 0: No calcium detected. This is a reassuring result, associated with a very low risk of heart attack in the near term.
- Score of 1 to 99: Mild buildup present. Some risk exists, and lifestyle changes are often recommended.
- Score of 100 to 399: Moderate to significant buildup. Your cardiologist will likely discuss medication and closer monitoring.
- Score of 400 or higher: Extensive calcification. This indicates a high risk of cardiovascular events, and active treatment is generally recommended.
A score alone does not tell the full story. Your cardiologist will interpret your result alongside your age, blood pressure, cholesterol levels, and overall health history before recommending next steps. According to the American Heart Association, CAC scoring significantly improves risk prediction beyond traditional risk calculators, particularly for patients in the intermediate range.
How a Heart Doctor Can Help
Knowing your score is only the beginning. What matters most is what happens next.
A heart doctor can walk you through your results in plain language, connect your score to your broader health picture, and build a follow-up plan that fits your life. Whether your score is reassuring or signals a need for action, you deserve guidance from a cardiologist who knows your history and takes the time to explain your options.
You do not have to interpret these results on your own. Compassionate, expert care is available close to home.
Reach out today by calling us at +1-718-367-2555 or walking into our clinic at 1797 Pitkin Avenue, Brooklyn, NY 11212 to schedule a consultation with a cardiologist and take the next step toward a clearer picture of your heart health.
