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Coronary artery calcium scans are becoming an increasingly popular way to assess a person's future risk of heart disease. The quick, relatively inexpensive CT test measures calcium buildup in the arteries that supply blood to the heart.
But new research from Northwestern Medicine suggests the scan may provide its greatest benefit to a narrower group of patients than previously assumed.
Researchers followed more than 6,000 adults for 10 years and found t...
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