Table 2 Phantom mean measurements ± standard deviation for different pixel size using T2 and T2*.

From: Optimisation of T2 and T2* sequences in MRI for better quantification of iron on transfused dependent sickle cell patients

Sequence

Voxel size

1%

2%

3%

4%

5%

20%

T2

1 × 1

47.25 ± 0.09

24.30 ± 0.1

16.33 ± 0.14

12.61 ± 0.10

10.11 ± 0.141

4.79 ± 0.80

2 × 2

50.57 ± 0.14

26.19 ± 0.11

17.52 ± 0.17

13.78 ± 0.13

11.29 ± 0.132

5.72 ± 0.97

2.5 × 2.5

53.28 ± 2.73

27.66 ± 0.32

18.81 ± 0.60

14.38 ± 0.46

11.71 ± 0.494

6.00 ± 0.99

3.28 × 3.28

54.23 ± 3.64

27.84 ± 0.31

19.17 ± 0.79

15.19 ± 0.62

12.86 ± 0.589

7.15 ± 0.95

4 × 4

54.84 ± 4.07

27.99 ± 0.39

19.57 ± 0.74

15.88 ± 0.60

12.73 ± 0.572

7.29 ± 1.00

T2*

1 × 1

36.74 ± 0.91

21.18 ± 0.31

15.25 ± 0.06

12.01 ± 0.20

9.60 ± 0.16

1.75 ± 0.12

2 × 2

44.10 ± 1.76

23.72 ± 0.69

18.52 ± 0.29

13.70 ± 0.36

10.28 ± 0.38

2.23 ± 0.12

2.5 × 2.5

45.88 ± 3.51

24.21 ± 0.36

19.99 ± 0.36

13.89 ± 0.34

11.12 ± 0.48

2.01 ± 0.12

3.28 × 3.28

50.72 ± 7.78

22.47 ± 0.50

20.13 ± 0.40

13.99 ± 0.45

11.16 ± 0.49

2.08 ± 0.20

4 × 4

50.03 ± 11.16

20.82 ± 1.54

20.22 ± 0.52

14.00 ± 0.44

11.56 ± 0.53

2.21 ± 0.37

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