Fig. 2From: Data-driven gated PET/CT: implications for lesion segmentation and quantitationScatter plots of lesion mean HU relative to baseline PET/CT for: a PET/ACT, b DDG-PET, and c DDG-PET/CT. In each figure, the number (%) of lesions with a mean HU > 0 is included. Note that at baseline, 38/91 (42%) lesions had mean HU > 0. The dashed line in each figure is the line of equivalence, while the dash-dot line is plotted at HU = 0Back to article page