Calcium heart scans sharpen risk estimates mainly for borderline-risk adults

Coronary calcium scans may help adults with borderline heart disease risk make better-informed decisions about their health. The scans can sharpen cardiovascular risk estimates, particularly for those who fall into the borderline-risk category. This group may benefit from the additional information provided by the scans, which can detect the presence of calcium in the coronary arteries.

This is significant because calcium buildup is an indicator of atherosclerosis, a condition that can lead to heart attacks and strokes. The scans are relatively inexpensive, with costs around $100. However, the scans may not be necessary for everyone.

Those at low risk may not gain significant insights from the procedure, while those at high risk may already be undergoing treatment. The scans are most useful for individuals who are on the fence about starting statin therapy, a medication used to lower cholesterol levels. For these borderline cases, the scans could serve as a tiebreaker in deciding whether to begin treatment.