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Table 2 Healthy control DTI data acquisition parameters (n = 1 subject, n = 9 DTI scans)

From: Diffusion tensor imaging in acute-to-subacute traumatic brain injury: a longitudinal analysis

Scanning session

DTI scan #

Field strength

FOV (mm)

b value (s/mm2)

# Directions

# b0

NEX

TR (msec)

TE (msec)

In-plane resolution (mm)

Slice thickness (mm)

Inter-slice gap (mm)

Matrix

1

1

3 T

256

700

12

2

5

8000

84

2.0 × 2.0

5

1.0

128 × 128

2

2

3 T

220

1000

25

3

1

4800

91

1.4 × 1.4

5

1.0

160 × 160

3

3

3 T

220

1000

25

3

3

5300

108

1.4 × 1.4

5

1.0

160 × 160

4

4

1.5 T

220

1000

6

1

3

5000

88

1.72 × 1.72

5.0

1.0

128 × 128

5

5

1.5 T

220

1000

6

1

3

5000

88

1.72 × 1.72

5.0

1.0

128 × 128

6

1.5 T

220

1000

6

1

3

5000

88

1.72 × 1.72

5.0

1.0

128 × 128

6

7

1.5 T

220

1000

6

1

3

5000

88

1.72 × 1.72

5.0

1.0

128 × 128

8

1.5 T

220

1000

6

1

3

9400

88

2.0 × 2.0

2.0

0

110 × 110

9

1.5 T

220

1000

25

3

1

5000

88

1.72 × 1.72

5.0

1.0

128 × 128

  1. The control subject’s first three DTI scans were performed on three different 3 Telsa MRI scanners on different days, whereas the next six DTI scans were performed on a 1.5 Tesla MRI scanner on a single day during three separate scanning sessions over a 2-hour period. Abbreviations: b0 b = 0 s/mm2, FOV field of view, NEX number of excitations (i.e. number of averages), T Tesla, TE echo time, TR repetition time, # number of