Cross-section of a coronary artery with plaque buildup: ‘A’ shows inserted deflated balloon catheter; balloon is inflated in ‘B’; ‘C’ shows widened artery. Source: National Heart, Lung, and Blood Institute; National Institutes of Health; U.S. Department of Health and Human Services.
Image source: National Heart, Lung, and Blood Institute; National Institutes of Health; U.S. Department of Health and Human Services.