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Table 1 Details of scanning protocol

From: Amide proton transfer-weighted imaging and stretch-exponential model DWI based 18F-FDG PET/MRI for differentiation of benign and malignant solitary pulmonary lesions

Sequence

Wfi3d-trig

T1WI

T2WI

SEM-DWI

APTWI

Type / Orientation

FSE /Axial

FSE /Axial

FSE /Axial

SS—EPI /Axial

FSE /Axial

Field of view (cm2)

35 × 50

35 × 50

35 × 50

35 × 50

35 × 50

Repetition time (ms)

4.92

5.06

3315

1620

4500

Echo time (ms)

2.24

2.1

87.8

69.6

42.56

Matrix

192 × 192

303 × 456

264 × 480

202 × 256

128 × 100

Slice thickness (mm)

2

5

5

5

5

Interval (mm)

0

1

1

1

1

Number of excitations

2

2

2

1, 1, 2, 2, 4, 4, 6, 6, 8, 10

1

b-values (s/mm2)

/

/

/

0, 25, 50, 100, 150, 200, 400, 600, 800, 1000

/

Fat suppression

No

No

Yes

Yes

No

Respiratory compensation

Yes

Yes

Yes

Yes

Yes

Scan time

2 min 04 s

14 s

2 min 26 s

3 min 38 s

3 min 15 s (single slice)

  1. Wfi3d-trig 3D T1-weighted spoiled gradient-echo sequence with Dixon-based water-fat separation imaging, FSE Fast spin echo, SS-EPI Single Shot Echo Planar Imaging, T1WI T1-weighted imaging, T2WI T2-weighted imaging, SEM-DWI Stretch-exponential model diffusion-weighted imaging, APTWI Amide proton transfer-weighted imaging