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Table 1 Parameters of the standard MR imaging sequences of liver used in the study

From: Hepatic magnetic resonance elastography: can it be an alternative to invasive biopsy preceding living donor liver transplantation?

MRI sequences

Non-contrast scans

Non-contrast fat suppressed scans

Contrast-enhanced fat suppressed scans

T1SGRE (in-phase and out-of-phase)

T2W-SS-FSE

T2W-RARE

T2*WI

STIR

DWI + STIR

DCE-MRI

Type of scan

Breath-hold SGRE

SS-FSE

Respiratory-triggered RARE

FGRE

STIR

SSh-EPI + STIR

Breath-hold 3D-T1W SGRE -LAVA + STIR

Imaging plane

Axial and coronal

Axial and coronal

Axial and coronal

Axial and coronal

Axial and coronal

Axial

Axial

TR/ TE (ms)

[in-phase]

= 126/4.6

[out-of-phase]

=126/2.3

[in-phase]

= 126/4.6

[out-of-phase]

=126/2.3

4000/102

100/15

418/80

4500–6000/80–120

4.4/2.1

TI (ms)

(for fat suppression)

140

140

140

NEX

1

1

1

1

1

2

1

FOV (mm3)

320 × 320 × 150

340 × 350 × 150

320 × 320 × 150

340 × 340 × 150

340 × 340 × 150

340 × 350 × 150

26 × 26

ST (mm)

3–5

3–5

5–7

5–7

5–7

5–7

3–5

Flip angle (°)

12

90

90

30

10

90

12

Intersection gap (mm)

0

0

1–2

0

0

0

0

Matrix

179 × 256

320x192

384 × 224

320x288

256 × 256

128 × 128

160 × 192

Acquired voxel size (mm3)

1.00 × 1.42 × 3.0

1.00 × 1.42 × 3.0

1.25 × 1.52 × 3.0

1.25 × 1.52 × 3.0

1.25 × 1.52 × 3.0

1.49 × 1.50 × 3.0

0.99 × 1.03 × 1.0

Scan time (min)

2:28

2:28

2:28

2:28

2:28

3:33

7:42

  1. T1SGRE T1-spoiled gradient recalled echo, RARE rapid acquisition relaxation enhanced, T2W-SS-FSE T2W-single shot-fast-spin echo, T2WFSE T2-weighted fast spin-echo, FGRE fast gradient echo, FS fat suppression, STIR short time inversion recovery, SSh-EPI single shot-echo planar imaging, 3D SGRE-T1WI three-dimensional spoiled gradient echo T1-weighted image, LAVA liver acquisition with volume acceleration, FOV field of view, (°) degrees, ST slice thickness, mm millimeters, mm3 cubic millimeters, min minutes