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Table 1 MR protocol for the pelvis during pregnancy

From: Imaging for acute pelvic pain in pregnancy

Parameter

Balanced gradient-echo sequence (FIESTA, true FISP, BSSFP)

T2 half-Fourier sequence (HASTE)

T1 3D FS gradient echo sequence DWI

Axial

Coronal/sagittal

Axial/axial FS

Coronal/sagittal

Axial/sagittal

Axial/sagittal

Repetition time/echo time (ms)

4.3/2.2

4.3/2.2

1,000/90

1,000/90

4.1/1.1

3,200/75

Flip angle (°)

50

50

150

150

10

10

Field of view (mm)

320–400

320–400

320–400

320–400

320–400

320–400

Matrix

256 × 224

256 × 224

256 × 224

256 × 224

256 × 224

256 × 192

Parallel imaging factor

2

2

2

2

3

2

Section thickness (mm)

5

5

4

4

2.5

10

Intersection gap (mm)

0

0

0

0

0

0

NEX

1

1

1

1

1

6

Receiver bandwidth

125

125

62.50

62.50

62.50

1,930

  1. Diffusion-weighted MR images were acquired with b values of 50, 400 and 800 s/mm²
  2. FIESTA Fast imaging employing steady-state acquisition, FISP fast imaging with steady-state precession, BSSFP balanced steady-state free precession, HASTE half-Fourier single-shot turbo spin-echo, FS fat saturated