Figure 6.

Immunofluorescence staining of VX2 tumors following yttrium-90 radioembolization (right) versus untreated control rabbits (left). a) CD31 positive staining (red) at 200x optical magnification demonstrated similar microvessel density (scale bar = 50μm) within the tumor periphery for the two groups and b) quantification showed no difference in MVD (p=0.6682). c) Increased Ki67 positive nuclear staining (green) was observed in untreated controls that had d) increased proliferative index in comparison to 90Y treated VX2 tumors (p=0.0071).