Skip to main content

Table 1 MRI sequence parameters used in this study. The dual-acquisition gradient echo (GRE) sequence was used for field mapping and the T2 images were acquired for delineation of the organs. x, y and z indicate the axes in the left-right, anterior-posterior and superior-inferior directions respectively

From: Per-organ assessment of subject-induced susceptibility distortion for MR-only male pelvis treatment planning

Field Strength (T)

Sequence

Acquisition

ΔVx/ΔVy/ΔVz

(mm)

Bandwidth (Hz/pixel)

α

TR (ms)

TE1(ms)

TE2(ms)

FOV (mm)

Turbo Factor

1.0

GRE

1.41/1.41/3

975

10°

15.87

6.91

13.81

474.19 × 474.19 × 300

T2

1.49/1.6/2.5

202

90°

5070

80

397.89 × 397.89 × 250

24

1.5

GRE

2.9/2.9/4

543

10°

11.19

4.61

9.22

416.90 × 416.90 × 200

T2

0.96/0.96/2.5

207

90

4620

100

180 × 180 × 84

17

3.0

GRE

2.9/2.9/4

1078

10°

2.30

2.30

4.61

416.90 × 416.90 × 200

T2

0.96/0.96/2.5

218

90°

4295

100

180 × 180 × 84

17