Loffi M, et al. - Researchers searched for the influence of the Optical Coherence Tomography (OCT) on the coronary flow in ST-elevation myocardial infarction (STEMI) after bioresorbable scaffold implantation. From the Prague 19 trial, they selected 54 patients with OCT performed at the end of procedure and evaluated coronary flow as TIMI frame count (TFC) before and just after OCT. Outcomes suggested the feasibility of OCT at the end of primary percutaneous coronary intervention with bioresorbable scaffold. However, it appeared to have a correlation with flow deterioration.