Patients underwent PET/CT imaging from skull to pelvis one hour after injection of 18F-FDG (including a non-contrast, free-breathing, ungated CT scan). Images were acquired in 3D mode on a Discovery VCT or Discovery RX scanner (GE-Healthcare, Milwaukee, WI, USA). PET/CT and CT images were merged and analyzed using Advantage Window Volume Viewer software (GE-Healthcare, Milwaukee, WI, USA) [1 (link)].
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