Randy Yeh MD, Presenter: Nothing to Disclose

Shifali Dumeer MD, Abstract Co-Author: Nothing to Disclose

Masanori Ichise MD, Abstract Co-Author: Consultant, Navidea Biopharmaceuticals, Inc Research support, Piramal Enterprises Limited Research support, Bayer AG

The International Working Group (IWG) response criteria has been widely adopted as standardized response criteria for assessment of lymphoma.  Initially formulated by Cheson et al in 1999, the IWG response criteria was devised to address the problem of variablity amongst institutions with respect to the normal lymph node size, frequency of assessment, methods used to assess response, amongst other factors.  With the increasing role of FDG PET in lymphoma in staging, restaging, and response assessment, the IWG revised the response criteria to include PET. The purpose of this exhibit is to: 1) Introduce the role of FDG PET/CT in lymphoma assessment with respect to staging, restaging, and treatment response. 2) Familiarize the reader with the IWG response criteria for CT and FDG PET/CT  3) Demonstrate how to apply the response critera using clinical cases

A. Current Role of FDG PET/CT in Lymphoma B. Revised IWG Response Criteria In Lymphoma Assessment Recommendations for FDG PET/CT for different lymphoma subtypes  Definitions of a positive PET scan Revised Response Criteria - Complete remission, partial remission, stable disease, and progression C. Clinical cases using response criteria  D. Cased-based self assessment on the application of IWG response criteria E. Summary 

http://abstract.rsna.org/uploads/2014/14014956/14014956_uibx.pdf

Yeh, R, Dumeer, S, Ichise, M, What the Oncologist Wants to Know — Using the International Working Group Response Criteria for FDG PET/CT in Lymphoma.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14014956.html