TheraSphere & Treatment of Unresectable Primary or Unresectable Secondary Liver Cancer

TheraSphere® is delivered into the liver tumor through a catheter placed into the hepatic artery. The hepatic artery provides the main blood supply to the tumor in the liver, whereas the portal vein supplies blood to normal liver parenchyma. TheraSphere® is embolized within the tumor and exerts a local beta radiation radiotherapeutic effect with a relatively limited concurrent injury to surrounding normal tissue.