1. Thin Cap Fibroatheroma Defined as Lipid Core Abutting Lumen (LCAL) on Integrated Backscatter Intravascular Ultrasound

    Thin Cap Fibroatheroma Defined as Lipid Core Abutting Lumen (LCAL) on Integrated Backscatter Intravascular Ultrasound

    Background:This study evaluated the ability of a newly developed integrated backscatter intravascular ultrasound (IB-IVUS) system (VISIWAVE, Terumo, Tokyo, Japan) to detect optical coherence tomography (OCT)-verified thin cap fibroatheroma (TCFA) and assessed the correlation with peri-procedural myocardial infarction (PMI) after percutaneous coronary intervention (PCI).Methods and Results:One hundred culprit lesions in 100 consecutive patients with ischemic heart disease who consented to repeated IVUS and OCT prior to PCI were studied. Of 100 lesions, 48 had OCT-verified TCFA with a cap thickness <65 µm. Such lesions had larger percentage lipid area and lipid angle >2 quadrants on IB-IVUS. A ...

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