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Table 2 Comparison of 18F-FET parameters in centre A and centre B based on the same data set

From: O-(2-[18F]fluoroethyl)-l-tyrosine PET in gliomas: influence of data processing in different centres

 

Centre A

Centre B

p value

Comparison of mean values of FET PET parameters

 TBRmax

2.84 ± 0.99

3.34 ± 1.13

< 0.001

 TBRmean

2.20 ± 0.41

2.16 ± 0.41

< 0.04

 Tvol (ml)

1.14 ± 1.28

1.51 ± 1.44

< 0.001

 TTP (min)

22.4 ± 8.3

30.8 ± 6.3

< 0.001

 Slope (SUV/h)

−0.06 ± 0.92

0.73 ± 0.69

< 0.001

Comparison of accuracy in differentiating HG and LG gliomas (AUC in ROC analysis)

 TBRmax

0.77

0.78

n.s.

 TBRmean

0.78

0.76

n.s.

 Tvol

0.78

0.76

n.s.

 TTP

0.73

0.78

n.s.

 Slope

0.76

0.72

n.s.

  1. n.s. = not significant