ORLANDO, Fla.--(BUSINESS WIRE)--A retrospective analysis of microsphere therapy, including Sirtex’s SIR-Spheres® microspheres, will be presented at the 2009 American Society of Clinical Oncology (ASCO) Annual Meeting, held May 29-June 2 in Orlando, Fla. Andrew Kennedy, M.D., F.A.C.R.O., co-medical director of Wake Radiology Oncology in Cary, N.C., will deliver a presentation on June 2 titled, “Intraarterial Yttrium-90 Microspheres for Hepatic Malignancies.” Sirtex manufactures SIR-Spheres microspheres, the only FDA approved microsphere therapy for colorectal liver metastases.