The potential impact of mammographic breast arterial calcification on physician practices in a primary care setting.

This study sought to determine breast arterial calcification (BAC) prevalence in a primary care setting and its potential use in guiding further cardiovascular workup. A radiologist reviewed 282 consecutive mammograms. Characteristics of BAC-positive and negative women were compared. BAC prevalence was 34%. BAC-positive women were older (mean age: 60 vs 52, p < 0.001), had higher mean 10-year cardiac risk (11 vs 6%, p < 0.001), more hypertension (65 vs 40%, p < 0.001) and coronary artery disease (10 vs 2%, p = 0.0041), statin (50 vs 32%, p = 0.006) and aspirin use (28 vs 16%, p = 0.012). Thirty-seven percent (33/96) of BAC-positive women could potentially benefit from further cardiac testing. Mammography identifies BAC-positive women with low traditionally assessed cardiovascular risk who might benefit from further cardiovascular workup.