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Figure 3 Scanning Electron Micrographs of 28-Day Comparator DES and BMS Controls

The upper panels show corresponding radiographic images of each stent. The lumens are patent and struts are less discernable under a thicker neointima relative to 14-day stents. Overall endothelial coverage is near complete in all DES although it remains poor above struts in PES and SES compared with ZES and EES. The panel insets are at higher magnification (x200) from the proximal and distal regions and show persistent uncovered struts, surface thrombi, inflammatory cells, and endothelial cells. Abbreviations as in Figure 1.