TABLE 2

PET Results

Histologic diagnosis18F-FET18F-FDG
Patient no.SUVmaxSUVmeanSUVmax/BGSUVmean/BGRatingSUVmax/cortexSUVmean/cortexRating
1Abscess2.51.72.01.30.80.6
2Abscess2.71.91.81.3NA
3Abscess2.72.22.62.1+1.50.9+
4Abscess1.81.12.51.6+1.30.7+
5Abscess1.31.01.51.20.90.5
6Empyema2.11.81.41.21.30.9+
7Demyelination3.12.42.62.0+NA
8Hemorrhage1.71.21.91.31.10.6
9Hemorrhage2.11.81.71.41.00.7
10GBM4.53.04.02.7+2.31.6+
11AA2.82.13.22.4+1.00.8+
12GBM4.03.23.12.4+1.41.1+
13GBM3.72.83.82.9+1.00.7+
14GBM3.72.53.42.3+NA
  • SUVmax = maximum standardized uptake value; SUVmean = mean standardized uptake value; BG = background; plus sign indicates SUVmean/BG ≥ 1.6 (18F-FET rating) or SUVmean/cortex ≥ 0.7 (18F-FDG rating); NA = not applicable; GBM = glioblastoma multiforme WHO grade IV; AA = anaplastic astrocytoma WHO grade III.