Radioembolization With Yttrium-90 Microspheres for Intermediate or Advanced Hepatocellular Carcinoma

Y-90 is incorporated into very tiny glass beads (microspheres: Therasphere MDS Nordion) and is injected into the liver tumor through the hepatic arteries, which are responsible for the feeding of the neoplastic liver tissue. Since the microspheres are unable to pass through the micro-vasculature of the liver parenchyma and tumor they are trapped at those sites and exert a local radio-therapeutic effect.