Fig. 7From: Towards accurate 177Lu SPECT activity quantification and standardization using lesion-to-background voxel ratioDelineation methods for the large organs in the anthropomorphic phantoms. The top images (a–c) show the delineation of the kidneys in the liver/kidney phantom, and the bottom images (d–f) show the delineation of the liver cavity in the torso phantomBack to article page