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Updated: Oct 12, 2025

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
Published on: August 28, 2018
Do carotid artery calcifications seen on radiographs predict stenosis in asymptomatic adults?
Diana Cowdrey1, Thomas W Hahn1, Lia Vellardita2
1Department of Family Medicine and Community Health, University of Wisconsin School of Medicine and Public Health, Madison.
Abstract:
NOT VERY WELL. IN ASYMPTOMATIC PATIENTS, CAROTID ARTERY CALCIFICATION SEEN ON RADIOGRAPH HAS A POSITIVE PREDICTIVE VALUE OF 70% AND A NEGATIVE PREDICTIVE VALUE OF 75% FOR CAROTID ARTERY STENOSIS (STRENGTH OF RECOMMENDATION [SOR]: B, SYSTEMATIC REVIEW OF OBSERVATIONAL STUDIES WITH HETEROGENEOUS RESULTS AND A RETROSPECTIVE COHORT STUDY). CAROTID CALCIFICATIONS ON RADIOGRAPHS MAY BE MORE PREDICTIVE OF CAROTID STENOSIS IN PEOPLE WITH ATHEROSCLEROTIC RISK FACTORS (SOR: C, CROSS-SECTIONAL STUDY). HARMS OUTWEIGH BENEFITS IN SCREENING FOR CAROTID ARTERY STENOSIS IN ASYMPTOMATIC ADULTS (SOR: B, MULTIPLE COHORT STUDIES); THEREFORE, INCIDENTAL RADIOGRAPHIC CAROTID ARTERY CALCIFICATIONS IN ASYMPTOMATIC PATIENTS SHOULD NOT PROMPT FURTHER TESTING.
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