This paper also includes accompanying supplementary data published at the following website: www.eurointervention.org
A 60-year-old man underwent sirolimus-eluting stent (SES) implantation (Figure 1A and Figure 1B). At two months (Figure 1C), intravascular ultrasound (IVUS) images showed homogenous echolucent appearance within the stent, recognised as a “black-hole” phenomenon (Figure 1E)1. Optical coherence tomography (OCT) images of the corresponding segment demonstrated a layered structure composed of thin inner layers with high-intensity signals and outer layers with low-intensity signals (Figure 1G). At eight months (Figure 1D), on the IVUS images, previous echolucent…