Research Article

Histological and Transmission Electron Microscopy Results after Embolization with HydroSoft/HydroFrame Coils in Experimental Swine Aneurysm

Figure 4

Immunohistochemical analysis of endothelial progenitor cells (EPCs). (a) Double immunofluorescence staining for VEGFR2 (green), CD34 (red), and merged images of proliferating tissue covering the aneurysmal orifice 4 weeks after embolization in normal arterial tissue and in the bare platinum (BP) and hydrogel coil groups. Scale bar = 20 μm. (b) Number of VEGFR2/CD34 double-positive cells. Data are expressed as mean ± standard error of three swine in each group. and between the two groups.
(a)
(b)