Ivan Platzek1, Bettina Beuthien-Baumann2, Georg Schramm3, Jens Maus3, Michael Laniado4, Jörg Kotzerke2, Jörg van den Hoff3, Markus Schuler5. 1. Dresden University Hospital, Department of Radiology, Fetscherstr. 74, 01307 Dresden, Germany. Electronic address: ivan.platzek@uniklinikum-dresden.de. 2. Dresden University Hospital, Department of Nuclear Medicine, Fetscherstr. 74, 01307 Dresden, Germany. 3. Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Bautzner Landstr. 400, 01328 Dresden, Germany. 4. Dresden University Hospital, Department of Radiology, Fetscherstr. 74, 01307 Dresden, Germany. 5. Dresden University Hospital, Department of Internal Medicine, Fetscherstr. 74, 01307 Dresden, Germany.
Abstract
OBJECTIVE: To assess the feasibility of positron emission tomography/magnetic resonance imaging (PET/MR) with 18F-fluordeoxyglucose (FDG) for initial staging of sarcoma. MATERIALS AND METHODS: Twenty-nine patients with sarcoma were included in this study. Weighted kappa (κ) was used to assess the agreement between PET/MR and conventional imaging (CT and MR). The accuracy of PET/MR and conventional imaging for distant metastases was compared using receiver operating characteristic (ROC) analysis. RESULTS: T and M stage were identical for PET/MR and conventional modalities in all patients (κ=1). N stage was identical for 28/29 patients (κ=0.65). CONCLUSIONS: FDG PET/MR shows excellent agreement with the currently preferred imaging methods (CT and MR) in initial staging of sarcoma.
OBJECTIVE: To assess the feasibility of positron emission tomography/magnetic resonance imaging (PET/MR) with 18F-fluordeoxyglucose (FDG) for initial staging of sarcoma. MATERIALS AND METHODS: Twenty-nine patients with sarcoma were included in this study. Weighted kappa (κ) was used to assess the agreement between PET/MR and conventional imaging (CT and MR). The accuracy of PET/MR and conventional imaging for distant metastases was compared using receiver operating characteristic (ROC) analysis. RESULTS: T and M stage were identical for PET/MR and conventional modalities in all patients (κ=1). N stage was identical for 28/29 patients (κ=0.65). CONCLUSIONS:FDG PET/MR shows excellent agreement with the currently preferred imaging methods (CT and MR) in initial staging of sarcoma.