Table 1 MRI sequence parameters for data acquisition.

From: M4Raw: A multi-contrast, multi-repetition, multi-channel MRI k-space dataset for low-field MRI research

 

Sequence type

Matrix size

TR/TE

Scan time per repetition

No. of repetitions

Echo train length

Echo spacing

Common parameters

T1w

Spin echo

256 × 195

500/18.4 ms

1 min 38 s

3

1

—

Field-of-view: 240 × 240 mm2

No. of slices: 18

Slice thickness/gap: 5/1 mm

Sampling bandwidth: 31.25 KHz

Phase encoding in left-right direction

T2w

Fast spin echo

256 × 195

5500/128 ms

1 min 12 s

3

15

16.0 ms

FLAIR

Inversion recovery fast spin echo

256 × 198

7500/98 ms; TI = 1655 ms

2 min 15 s

2

11

16.3 ms

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