Severely Circumferentially Calcified Neointima as a New Cause of Undilatable In-Stent Restenosis

Figure 1

First time coronary angiography and corresponding OCT image. (a) Angiography demonstrated tandem stenotic lesions within the previously implanted stent. (b) OCT revealed severely calcified neointima (asterisks) within well-expanded stent struts (arrowheads) at the distal stenotic site. OCT: optical coherence tomography.

(a)

(b)