Fig. 3

Changes in the gallbladder ¹⁸F-FDG uptake pattern and intensity on serial total-body PET/CT acquisitions. Axial PET, CT and fused images acquired after i.v. injection of 389 MBq in a 53 y/o healthy participant. Images at 40-min timepoint show wall activity, equal to the liver background; images at 90-min timepoint show luminal uptake, equal to the liver uptake; and images acquired at 180-min post-injection show increased luminal uptake, higher than that of the liver background. Arrows: gallbladder; Asterisks: gallbladder lumen; A PET, CT and fused PET/CT images at 40-min timepoint; B PET, CT and fused PET/CT images at 90-min timepoint; C PET, CT and fused PET/CT images at 180-min timepoint