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Table 2 Diffusion parameters in the contrast-enhancing tumor or peritumoral edema of HGGs and SBMs

From: Differentiation between high-grade gliomas and solitary brain metastases: a comparison of five diffusion-weighted MRI models

Parameters

Contrast-enhancing tumor

p value

Peritumoral edema

p value

HGGs (n = 20)

SBMs (n = 21)

HGGs (n = 20)

SBMs (n = 21)

DWI

 ADC (10–3 mm2/s)

0.56 ± 0.10

0.64 ± 0.14

0.068

0.57 ± 0.10

0.59 ± 0.15

0.876

DTI

 AD (10–3 mm2/s)

0.88 ± 0.11

0.93 ± 0.15

0.361

0.92 ± 0.18

0.97 ± 0.30

0.715

 RD (10–3 mm2/s)

0.55 ± 0.15

0.69 ± 0.18

0.006*

0.56 ± 0.15

0.61 ± 0.26

0.754

 MD (10–3 mm2/s)

0.66 ± 0.12

0.77 ± 0.17

0.016*

0.68 ± 0.15

0.73 ± 0.26

0.958

 FA

0.33 ± 0.13

0.22 ± 0.09

0.007*

0.35 ± 0.11

0.33 ± 0.15

0.315

DKI

 AK

0.72 ± 0.13

0.75 ± 0.09

0.396

0.81 ± 0.12

0.74 ± 0.15

0.120

 RK

0.95 ± 0.34

0.82 ± 0.19

0.137

0.95 ± 0.28

1.03 ± 0.31

0.397

 MK

0.80 ± 0.20

0.78 ± 0.12

0.681

0.84 ± 0.16

0.86 ± 0.18

0.756

 ADk (10–3 mm2/s)

1.31 ± 0.18

1.42 ± 0.27

0.095

1.34 ± 0.24

1.44 ± 0.43

0.449

 RDk (10–3 mm2/s)

0.81 ± 0.21

1.09 ± 0.32

0.002*

0.83 ± 0.23

0.94 ± 0.38

0.549

 MDk (10–3 mm2/s)

0.97 ± 0.17

1.21 ± 0.30

0.007*

1.03 ± 0.24

1.10 ± 0.38

0.835

 FAk

0.32 ± 0.15

0.23 ± 0.09

0.021*

0.33 ± 0.11

0.31 ± 0.13

0.309

MAP

 NG

0.27 ± 0.06

0.25 ± 0.38

0.216

0.28 ± 0.05

0.27 ± 0.05

0.426

 NGAx

0.22 ± 0.04

0.21 ± 0.32

0.295

0.29 ± 0.13

0.23 ± 0.44

0.192

 NGRad

0.15 ± 0.04

0.14 ± 0.02

0.784

0.15 ± 0.03

0.14 ± 0.03

0.359

 MSD (10−5mm2)

18.77 ± 4.27

24.24 ± 6.12

0.002*

20.09 ± 4.09

21.90 ± 7.62

0.855

 QIV (10−10mm5)

45.40 ± 22.28

73.67 ± 45.77

0.039*

49.77 ± 29.74

71.50 ± 95.45

0.754

 RTOP (105 mm−3)

3.28 ± 1.31

2.57 ± 0.89

0.100

3.48 ± 1.25

3.32 ± 1.34

0.691

 RTAP (103 mm−2)

5.11 ± 1.71

4.17 ± 1.17

0.068

5.41 ± 1.37

5.33 ± 1.88

0.876

 RTPP (101 mm−1)

5.03 ± 0.42

4.87 ± 0.44

0.229

5.08 ± 0.60

4.90 ± 0.68

0.404

NODDI

 Vic

0.49 ± 0.14

0.46 ± 0.10

0.485

0.51 ± 0.12

0.50 ± 0.15

0.796

 Viso

0.09 ± 0.05

0.23 ± 0.12

0.001*

0.11 ± 0.07

0.16 ± 0.14

0.167

 ODI

0.35 ± 0.11

0.45 ± 0.09

0.003*

0.34 ± 0.12

0.36 ± 0.14

0.631

  1. All numerical data are presented as the mean ± standard deviation. *p < 0.05