Table 1 Number of reconstructed image voxels and size in the selected ROIs.

From: Reduction of bias in the evaluation of fractional anisotropy and mean diffusivity in magnetic resonance diffusion tensor imaging using region-of-interest methodology

Brain region

Number of voxels in ROI (mean ± SEM)

ROI size [mm3]

(mean ± SEM)

Sub-ROI*

Number of voxels in sub-ROI (mean ± SEM)

Sub-ROI size [mm3]

(mean ± SEM)

CN

89 ± 6

172.5 ± 10.8

1

22 ± 3

43.6 ± 5.4

2

22 ± 2

44.2 ± 4.3

3

22 ± 3

43.2 ± 5.8

4

23 ± 3

47.1 ± 5.9

GP

98 ± 7

190.8 ± 13.4

1

26 ± 4

51.6 ± 7.6

2

24 ± 3

47.1 ± 6.1

3

25 ± 4

51.3 ± 7.5

4

23 ± 3

45.8 ± 5.2

PUT

122 ± 7

236.4 ± 12.7

1

29 ± 3

57.8 ± 5.6

2

31 ± 4

60.8 ± 6.7

3

32 ± 4

62.7 ± 6.9

4

30 ± 3

58.6 ± 6.1

STG

140 ± 8

271.2 ± 15.0

1

34 ± 3

67.2 ± 7.3

2

35 ± 4

68.1 ± 7.5

3

35 ± 4

68.8 ± 7.4

4

36 ± 4

72.1 ± 7.7

Thalamus_LD

78 ± 5

151.3 ± 9.4

1

19 ± 3

38.4 ± 4.5

2

19 ± 2

37.4 ± 4.2

3

19 ± 2

39.1 ± 3.6

4

21 ± 3

41.4 ± 4.7

Thalamus_VA

62 ± 5

120.6 ± 8.2

1

17 ± 3

33.2 ± 4.3

2

15 ± 2

28.4 ± 4.2

3

14 ± 2

27.5 ± 3.4

4

16 ± 3

31.5 ± 4.1

Thalamus_VP

69 ± 6

134.8 ± 8.6

1

17 ± 3

32.8 ± 4.8

2

17 ± 3

33.3 ± 5.2

3

18 ± 3

34.9 ± 4.9

4

17 ± 3

33.8 ± 5.1

  1. CN, caudate nucleus; GP, globus pallidus; PUT, putamen; SEM, standard error of the mean; STG, superior temporal gyru; LD, lateral dorsal; VA, ventral anterior; VP, ventral posterior. *Sub-ROIs 1 and 2 are two sub-ROIs on Slice 1; Sub-ROIs 3 and 4 are two sub-ROIs on Slice 2.
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