From: Suspected recurrence of brain metastases after focused high dose radiotherapy: can [18F]FET- PET overcome diagnostic uncertainties?
Identification of recurrent tumor
TBRmax > 2.15
TBRmean > 1.95
Decreasing TACs
Decreasing TACs in combination with TBRmax > 2.15/TBRmean > 1.95
Sensitivity
86 %
85 %
93 %
Specificity
79 %
60 %
84 %
Accuracy
82 %
74 %
88 %