Novel 3-Dimensional Vessel and Scaffold Reconstruction Methodology for the Assessment of Strut-Level Wall Shear Stress After Deployment of Bioresorbable Vascular Scaffolds From the ABSORB III Imaging Substudy.

A 72-year-old female patient underwent successful deployment of a single 3.0 18 mm Absorb bioresorbable vascular scaffold (Abbott Vascular, Santa Clara, California) to the mid right coronary artery (Figures 1A and 1B). The scaffolded segment was imaged simultaneously with coronary angiography and with the C7 Dragonfly (LightLab Imaging Inc., St. Jude Medical, Westford, Massachusetts) optical coherence tomographic (OCT) system at 100 frames/s with a motorized pull-back speed of 20 mm/s and a flush rate of 3 ml/s. Images demonstrated adequate scaffold apposition, with no evidence of edge dissections or tissue prolapse (Figure 1C). This patient was enrolled in the ongoing imaging substudy of the ABSORB III randomized clinical trial, RESTORATION (Evaluation and Comparison of ThreeDimensional Wall Shear Stress Patterns and Neointimal Healing Following Percutaneous Coronary Intervention with the Absorb Everolimus-Eluting Bioresorbable Vascular Scaffold Compared to the Xience V Everolimus-Eluting Metallic Stent), which