Fig. 4From: Construction and comparative evaluation of different activity detection methods in brain FDG-PETComparison of 37 reference datasets (REF): a normalized with CAD4D or SPM, b normalized with CAD4D or NEUROSTAT (NST), c normalized with SPM or NEUROSTAT (NST). Difference images depict increased (white) or decreased (black) metabolic activityBack to article page