Figure 6.

3D structure and cross-sectional 2D micro-CT images of expended helical stents in artery revealing the with corrosion products ex vivo dynamic simulation for 3 days in DMEM (10% FBS, 1% P/S) at 37 °C, 5% CO₂. (a) Bare stent and extracted stent in artery, (b) 2D sliced image, (c) Enlarged one strut of (b), (d) Interface between implanted helical stent and tissue, (e) Enlarged images at a depth of 1.6 mm in (d,f) sliced images from outmost of artery to lumen (arrow direction in (d)), (g) Actual representative X-ray micro-CT 3D structures of expanded Mg-based helical stent scaffold at the porcine artery. Product: Ca/P complex, H-stent: Mg helical stent, Scale bars on (f): 1 mm.