Late clinical outcome of suboptimal stent implantation defined by intracoronary optical coherence tomography

Optical coherence tomography (OCT) is an intravascular imaging technique that provides high-resolution (10-20 m) images. During percutaneous coronary intervention (PCI), OCT offers useful information to guide treatment strategies and assess optimal stent implantation (Figure However, OCT remains markedly underused in the real world. For further integration of OCT into clinical practice, it is necessary to accumulate evidence showing that OCT has a beneficial impact on the outcomes of PCI. In 2012 and 2015, Prati et al 1,2 reported the clinical benefits of OCT guidance in PCI using data from a large retrospective registry named CLI-OPCI (Centro per la Lotta contro l'Infarto-Optimisation of Percutaneous Coronary Intervention). The CLI-OPCI