Fig. 2

Longitudinal and 3D OCT views. a, d, g and j Tissue and lumen display mode. b, e, h and k Stent only display mode. c, f, i and l Lumen display mode. a–c The baseline OCT pre-procedure showed severe stenosis with stent underexpansion (white arrows). d–f The OCT post-stent ablation demonstrated that partial metallic struts disappeared (white arrows). g–i The OCT post high-pressure balloon dilatation following stent ablation showed that the target lesion has been well dilated. j–l The final OCT post-procedure demonstrated that the new implanted stent was well expanded