Kengo Fukunaga, Mitsuru Ohishi, et al
The paclitaxel-coated balloon (PCB) is a useful device for percutaneous coronary intervention (PCI). PCB angioplasty is performed mainly to ISR lesions and in small vessel disease. Previous studies have shown its favourable clinical outcomes and arterial healing process1. However, the visual changes of the arterial healing process in real-world patients have not yet been examined. We therefore sought to assess changes of the intima after PCB angioplasty using the highresolution optical frequency domain imaging (OFDI) system.