Proceedings of the International Symposium

To correlate the appearance of Alveolar Echinococcosis (AE) hepatic lesions in Magnetic Resonance Imaging (MRI) as defined by Kodama, to the metabolic activity visualized in 18-Fluoro-DeoxyGlucose Positron Emission Tomography combined with Computed Tomography (PET/CT).

Forty-two patients (25 men; mean age: 62.2) diagnosed with AE and who underwent both MRI and PET/CT were included. Three independent readers blinded with regard to the PET/CT information, divided the forty-two hepatic lesions into five types according to Kodama's classification. Concerning PET/CT, two independent readers, unaware of the MRI information, considered the results as positive when an increased FDG-uptake was observed at 1 or 3 hours after FDG injection, and as negative when no increased uptake was noted. Inter-observer agreement was assessed by using j statistics.