Optical coherence tomography is a feasible imaging modality in patients with AMI and allows us to identify not only plaque rupture, but also fibrous cap erosion, intracoronary thrombus, and TCFA in vivo more frequently compared with conventional imaging techniques.

Serial OCT examinations demonstrated markedly different vascular response up to 9 months after SES implantation between UAP and SAP patients. Although the inadequate lesion morphologies after stenting were observed more frequently in UAP patients, these findings were not associated with adverse outcomes in patients with antiplatelet therapy.

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Six months of DAPT was not inferior to 18 months of DAPT following implantation of a DES with a biodegradable abluminal coating. However, this result needs to be interpreted with caution given the open-label design and wide noninferiority margin of the present study. (Nobori Dual Antiplatelet Therapy as Appropriate Duration [NIPPON]; NCT01514227).

Objective Unlike arteriogenesis, little is known about the effects of vasculogenesis and its major effector cells, endothelial progenitor cells (EPCs) on collateral formation. In this study, we investigated whether or not the number and function of EPCs were associated with the development of collateral formation in patients with single-vessel coronary artery disease of chronic total occlusion (CTO). Methods and ResultsThe subjects were patients (n=35) undergoing coronary angiography (CAG)