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Table 3 Mean (standard differentiation) of the diffusion parameters obtained from DTI, and the bi- and tri-exponential models for each type of solid lesion

From: Mono, bi- and tri-exponential diffusion MRI modelling for renal solid masses and comparison with histopathological findings

 

DTI

Bi-exponential model

Tri-exponential model

MD [10−3 mm2/s]

FA

fstar [%]

Dbi [10−3 mm2/s]

ffast [%]

finterm [%]

Dtri [10−3 mm2/s]

cc-RCC (n = 9)

1.94 (0.33)

0.46 (0.12

11.6 (3.62)

1.71 (0.42)

7.36 (3.14)

18.8 (5.78)

1.38 (0.34)

cc-RCC with sarcoid differentiation, extensive necrosis and hemorrhaging (n = 1)

1.77

0.58

12.5

1.38

7.83

20.1

1.04

cc-RCC with extensive necrosis (n = 1)

1.19

0.64

10.78

0.92

6.13

15.11

0.71

cc-RCC with papillary growth (n = 1)

1.82

0.28

16.5

1.49

11.2

20.6

1.19

cc-RCC with cells situated in nests and extravasation of erythrocytes (n = 1)

1.94

0.40

14.29

1.71

9.11

22.25

1.71

cc-RCC with areas of low cell density, hemorrhaging and cystic structures (n = 1)

2.24

0.57

10.35

1.90

6.22

12.46

1.68

cc-RCC with extensive hemorrhage (n = 1)

2.01

0.46

16.62

1.71

12.43

16.09

1.49

cc-RCC with cystic and solid areas (n = 1)

2.20

0.45

8.69

1.97

6.25

15.31

1.69

cc-RCC with micro- cystic structures and hemorrhaging (n = 1)

2.17

0.36

7.95

2.39

2.83

31.72

1.68

p-RCC (n = 2)

1.68 (0.20)

0.50 (0.01)

11.3 (3.8)

1.36 (0.06)

6.56 (1.80)

16.3 (2.88)

1.14 (0.06)

Hemangioma (n = 1)

2.38

0.61

6.06

2.45

2.99

22.6

1.99

Oncocytoma (n = 1)

1.98

0.34

17.1

1.63

12.5

19.2

1.36

  1. cc-RCC clear cell renal cell carcinoma, p-RCC papillary renal cell carcinoma, MD mean diffusivity, FA fractional anisotropy