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Table 3 13N-NH3, 11C-MET and 18F-FDG uptake positive in all lesion groups and mean L/WM ratios in neoplastic lesions, LGG, HGG and NNL

From: Diagnostic accuracy of 13N-ammonia PET, 11C-methionine PET and 18F-fluorodeoxyglucose PET: a comparative study in patients with suspected cerebral glioma

Group No. of Patients Positive, n L/WM (mean ± SD)
NH3 MET FDG NH3 MET FDG
Neoplastic lesions 67 42 63 24 2.25 ± 0.69 2.96 ± 0.95 2.00 ± 0.86
 LGG 27 6 24 1 1.76 ± 0.51 2.34 ± 0.56 1.36 ± 0.35
 HGG 30 27 30 18 2.59 ± 0.54 3.64 ± 0.90 2.59 ± 0.75
 Non-glioma tumors 10 9 9 5    
NNL 23 1 10 8 1.50 ± 0.27 1.88 ± 0.63 2.07 ± 0.71
  1. LGG low-grade glioma, HGG high-grade glioma, NNL non-neoplastic lesions, L/WM Lesion-to-white matter ratio