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Table 2 Relative percentage error (RPE) in parameters, derived from DCE-MRI data analysis

From: Evaluation of B1 inhomogeneity effect on DCE-MRI data analysis of brain tumor patients at 3T

 

Relative % error (mean ± S.D)

B1

Ktrans

Ve

Vp

CBV

CBF

CBV_Corr

0.95–1

− 0.85 ± 0.70

− 0.96 ± 0.87

− 0.42 ± 1.33

− 1.02 ± 0.794

− 1.22 ± 0.786

− 0.84 ± 0.815

1–1.05

0.26 ± 1.80

9.10 ± 17.99

1.25 ± 0.80

1.28 ± 0.50

1.17 ± 0.408

1.66 ± 1.91

1.05–1.10

3.77 ± 1.19

5.50 ± 2.80

3.03 ± 1.65

3.49 ± 0.95

3.27 ± 1.47

2.75 ± 0.76

1.10–1.15

5.62 ± 2.52

19.12 ± 13.10

6.64 ± 3.41

6.01 ± 1.79

6.44 ± 2.48

4.19 ± 1.23

1.15–1.20

9.74 ± 2.44

14.78 ± 9.84

7.22 ± 1.70

8.48 ± 0.92

9.49 ± 3.63

7.12 ± 1.28

1.20–1.25*

12.91

12.86

9.70

10.51

10.52

9.69

  1. RPE of each parameter from brain tumor of 35 patients were grouped based upon range of B1rel value
  2. * This group had only one patient and hence no S.D