Fig. 4From: Inter-observer agreement improves with PERCIST 1.0 as opposed to qualitative evaluation in non-small cell lung cancer patients evaluated with F-18-FDG PET/CT early in the course of chemo-radiotherapyAgreement among eight observers. Red is “multiple level disagreement” defined as more than one response category difference, i.e., some observers reported progressive disease and some reported partial metabolic response. Yellow is “single level disagreement” defined as only one response category difference for one or more observers. Green is full agreement among all observersBack to article page