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Table 1 MRI sequences and parameters

From: Reproducibility and usefulness of quantitative apparent diffusion coefficient measurements for predicting program death-ligand 1 expression in nasopharyngeal carcinoma

MRI Sequences

b value (s/mm2)

TR/TE (ms)

Gap (mm)

ST (mm)

FOV(cm)

Matrix

NEX

1.5T MRI examination

       

Axial TSE T1-weighted

-

545/14

4

4

26 × 25

328 × 220

1

Axial TSE T2-weighted

-

3193/80

5

5

26 × 25

228 × 185

2

Coronal FS T2-weighted

-

3224/165

5

5

26 × 25

312 × 163

1

Axial contrast-enhanced TSE T1-weighted

-

545/14

4

4

26 × 25

252 × 219

1

Sagittal contrast-enhanced TSE T1-weighted

-

545/14

4

4

26 × 25

304 × 205

1

Axial diffusion-weighted imaging

0, 800

5500/70

2

5

26 × 25

100 × 180

2

3.0T MRI examination

       

Axial TSE T1-weighted

-

575/20

5

5

26 × 25

256 × 192

2

Axial TSE T2-weighted

-

4000/90

5

5

26 × 25

256 × 192

2

Coronal FS T2-weighted

-

2470/68

5

5

26 × 25

256 × 256

1

Axial contrast-enhanced TSE T1-weighted

-

506/14

5

5

26 × 25

256 × 192

1

Sagittal contrast-enhanced TSE T1-weighted

-

506/14

5

5

26 × 25

256 × 192

1

Axial diffusion-weighted imaging

0, 800

6000/80

2

5

26 × 25

105 × 200

2

  1. Abbreviations: FS fat suppression, TR repetition time, TE echo time, ST slice thickness, FOV field of view, NEX number of excitation