Fig. 1

PET images of the Iida phantom filled with F-18 solution a HR+ (rotated and translated), b the hHRRT(4.5 mm), and c hHRRT(0 mm). All hHRRT images were down-sampled to match the HR+ voxel size. Units on the color bars are in Bq/mL
PET images of the Iida phantom filled with F-18 solution a HR+ (rotated and translated), b the hHRRT(4.5 mm), and c hHRRT(0 mm). All hHRRT images were down-sampled to match the HR+ voxel size. Units on the color bars are in Bq/mL