March 5, 2009 – MDS Nordion, a leading provider of medical isotopes and radiopharmaceuticals, will showcase an improved administration system for TheraSphere, Yttrium-90 Microsphere (Y-90), a targeted internal radiation therapy for patients with inoperable, primary liver cancer, during the upcoming Society of Interventional Radiology 2009 (SIR 2009) scientific meeting in San Diego, CA.