1. Superficial calcified nodules and post-stenting micro-dissections imaged through 3-dimensional optical coherence tomography

    Superficial calcified nodules and post-stenting micro-dissections imaged through 3-dimensional optical coherence tomography
    A 76-year-old stable angina patient underwent coronary angiography showing a de novo, angiographically severe lesion on the mid-proximal left anterior descending coronary artery. Optical Frequency-Domain Imaging (OFDI) (C7 System and Dragonfly catheter; LightLab Imaging, Westford, MA; USA) imaged a mainly fibrocalcified plaque with two major stenotic tracts (). Direct stenting with an everolimus-eluting stent (Xience 2.75×28mm, Abbott Medical; 10atm) was successfully conducted. OFDI procedure was repeated after stenting. Angiograms after PCI showed normal stent appearance without any side branch occlusion. However, 24-hour post-procedural CK-MB was 37IU/L and a type IVa MI was diagnosed.
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