Fig. 1
Panels (a) and (b) showed fused images of [18F]FDG-PET/CT (see white arrows) corresponding to focal hypermetabolic areas in spleen (highest was SUVmax = 3.2), previously visualized as hypointense images on computed tomography. Scanning was performed with 90 kV, 10–120 mAs (smart mA) and 3.75 mm section thickness. Acquisition time was 2 min per table position with 10-slice overlap at the FOV borders. PET image data sets were reconstructed iteratively (4 iterations and 24 subsets) by applying the CT data for attenuation correction. Fused images were displayed on a workstation using dedicated software