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High cholesterol, a quick scan, and a little peace of mind

I've known about my high cholesterol since my twenties. For me, genetics plays a big part. I feel fine, but after years of high numbers, I decided to get a coronary calcium scan.

It's a quick CT scan with no IV or contrast dye and a small dose of radiation. It looks for calcium in plaque in the arteries feeding the heart.

My score was zero. That eased my mind. It means no calcified plaque was detected. Other plaque can still be there, especially in younger people, so zero doesn't erase those years of high cholesterol.

That's where the numbers need a little context. An LDL ("bad" cholesterol) level of 150 or 170 mg/dL alone doesn't mean everyone needs a scan. If we're unsure about a statin, a cholesterol-lowering medicine, the scan can help with that conversation. Persistent LDL of 160–189 mg/dL deserves attention; at 190 or higher, a zero score usually isn't a reason to skip treatment. Age, family history, diabetes and smoking matter too.

For a friend or family member in a similar situation, I'd start with their cholesterol history and ask: would this scan change what we decide together? For me, it added useful information and a little peace of mind.

SimonMed: about $100; confirm the total with your local location.

To see what the scan looks like:

These videos illustrate the test; screening and treatment still depend on your own risk.

Study detail and sources

One MESA study followed 246 adults with LDL of at least 190 mg/dL, average age 63. Estimated 10-year cardiovascular event risk was 3.7% with zero calcium versus 20% with detectable calcium. This was an observational subgroup, not a trial showing it's safe to skip statins.

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