Diagnostic value of 18F-FDG-PET to predict the tumour immune status defined by tumoural PD-L1 and CD8+tumour-infiltrating lymphocytes in oral squamous cell carcinoma

摘要

F-FDG-uptake was compared between the cold tumour group and the others group. In the cold tumour group, median F-FDG-uptake was 10.98 while it was 6.25 in the others group. shows independent samples median test (  = 0.024). ROC analysis showed that the optimal cut-off value for a cold tumour was 11.4 (AUC = 0.65,  = 0.04, sensitivity = 50%, specificity = 91%; Patients with F-FDG-uptake above 11.4 for cold tumours were defined as having high F-FDG-uptake.