Figure 6

Percentage differences versus lesion volume. Relative percentage differences of SUVmax for TOF (a), HD (b) and UHD (c) compared with OSEM for the 74 lung lesions against lesion volume as measured in the OSEM images using a 40% threshold. All plots are for matched voxel COV. The black line illustrates the percentage differences measured for the six spheres of the image quality phantom.