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Table 1 MRI protocols for the imaging sequences

From: Non-invasive MR assessment of the microstructure and microcirculation in regional lymph nodes for rectal cancer: a study of intravoxel incoherent motion imaging

MRI Protocol

TR

(ms)

TE

(ms)

Slice Thickness

(mm)

Slices

FOV

(mm)

Voxel size

(mm)

No. of Signals Acquired

Scanning time

Pre-contrast enhanced sequences

 Axial T2WI

3000

87

5.0

25

260 × 260

0.8 × 0.7 × 5.0

2

2′54”

 Axial IVIM-MRIa

3800

74.4

6.0

21

300 × 300

2.7 × 2.7 × 6.0

2

6′1”

 Sagittal T2WI

3000

87

3.0

19

180 × 180

0.7 × 0.6 × 3.0

2

2′30”

 Coronal T2WI

4000

77

3.0

25

220 × 220

0.7 × 0.6 × 3.0

2

2′52”

 Oblique axial T2WI

3000

84

3.0

24

180 × 180

0.6 × 0.6 × 3.0

2

3′18”

Post-contrast enhanced sequence

 Oblique axial fat-suppressed T1WI

716

12

3.0

18

180 × 180

0.8 × 0.6 × 3.0

2

3′41”

 Coronal 3D-VIBE T1WI

10

4.9

1.0

144

380 × 380

1.0 × 1.0 × 1.0

1

3′10”

  1. Note: a, single-shot spin-echo echo-planar imaging, b = 0, 5, 10, 20, 30, 40, 60, 80, 100, 150, 200, 400, 600, 1000, 1500 and 2000 s/mm2