Coronary artery calcium (CAC) scoring is one of the highest-value cardiac imaging tests for primary prevention. In China, it's also one of the cheapest — by an order of magnitude.
For adults aged 40–75 at intermediate calculated cardiovascular risk, the coronary artery calcium (CAC) score is the single most useful add-on test for refining the lipid-lowering decision. A CAC score of 0 has very high negative predictive value — many such patients can defer statin initiation. A CAC ≥100 typically prompts statin therapy regardless of calculated risk. A CAC ≥300 strongly suggests aggressive risk-factor modification and possibly aspirin.
Why CAC Score Matters
For adults aged 40–75 at intermediate calculated cardiovascular risk, the coronary artery calcium (CAC) score is the single most useful add-on test for refining the lipid-lowering decision. A CAC score of 0 has very high negative predictive value — many such patients can defer statin initiation. A CAC ≥100 typically prompts statin therapy regardless of calculated risk. A CAC ≥300 strongly suggests aggressive risk-factor modification and possibly aspirin.
Major guidelines (2018 ACC/AHA, 2021 ESC primary prevention) endorse CAC as a tiebreaker for patients in the borderline-to-intermediate calculated risk range.
The Cost Gap
- US private rate (without insurance): USD 200–600 at standalone imaging centres; up to USD 1,200 at hospital systems
- China Class A international department: USD 140–220 all-in, including radiologist read
The radiation dose for CAC is approximately 1 mSv — very low.
Pairing CAC with the Right Workup
CAC alone is informative, but most cost-effective when bundled with a baseline cardiovascular risk panel:
- Lipid panel including ApoB
- HbA1c and fasting glucose
- BP measurement and ECG
- (For elevated-risk patients) high-sensitivity CRP, lipoprotein(a) once in lifetime
Bundled, this is a USD 280–460 workup at a Class A international department — vs USD 1,500–3,000 for the equivalent at a US concierge clinic.
Who Should Consider It
Take our free cardiovascular 10-year risk screener first. If you score in the moderate or elevated band, CAC is high-yield. Below the borderline range, the test typically returns 0 and adds little.
What CAC Doesn't Tell You
CAC measures calcified plaque, not soft (vulnerable) plaque. A score of 0 does not rule out unstable plaque in younger patients with strong family history or other risk markers. For symptomatic patients, coronary CT angiography (CTA) is the appropriate test, not CAC alone — and is also dramatically cheaper in China.
Sources: 2018 ACC/AHA cholesterol guidelines; 2021 ESC primary prevention guidelines; partner-hospital imaging pricing 2026.