Changes of tumor microcirculation after transcatheter arterial chemoembolization: First pass perfusion MR imaging and Chinese ink casting in a rabbit model

Figure 3 Micro-vessel casting with Chinese ink through ascending artery. A: The specimens show a lobular architecture of normal liver, magnification × 100. B: In control group, hepatic artery perfusion shows networks of micro-vessels or plexuses of dilated and tortuous course around and within the tumor originated from the arterioles, some sinusoid vessels can be observed in this tumor, magnification × 100. C: The original micro-vessels of the tumor are remarkably diminished, small and dense new plexuses appear around the tumor in lipiodol group, which are correlated to intense reaction of granulation tissue, magnification × 100. D: micro-vessels are decreased in bletilla group, no new micro-vessels can be seen at all, magnification × 100.