OCT Assessment of Thin-Cap Fibroatheroma Distribution in Native Coronary Arteries

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• Motomaru Masutani
• Kenichi Fujii

1. Objectives We evaluated the geographic distribution of thin-cap fibroatheromas (TCFAs) in the coronary arteries using optical coherence tomography (OCT), a high-resolution imaging modality. Background Plaque rupture is the most frequent cause of acute myocardial infarction (AMI). It has been recognized that TCFA is the primary plaque type at the site of plaque rupture. Methods We performed 3-vessel OCT examinations in 55 patients: 35 AMI and 20 stable angina pectoris patients. The criteria for TCFA in an OCT image was a lipid-rich plaque with fibrotic cap thickness <65 µm. The distance between each TCFA location and the respective coronary artery ostium ... (Read Full Article)

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