Figure 1a. Scatterplots for all types of liver lesions. Note that all malignancies have high values (ie, large difference between lesion and liver), while all FNHs and some hemangiomas have low values (ie, little or no difference compared with adjacent liver). All three evaluations show that all FNHs behaved like liver, with complete separation from all malignancies, which appeared as defects. Hemangiomas were more variable; some but not all had high SAE. (a) OCSs. Horizontal lines indicate median values. (b) SCSs for observer 1. (c) SCSs for observer 2.