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Table 1 Imaging sequence parameters for all magnetic resonance imaging (MRI) measures used in this study

From: Variability of noninvasive MRI and biological markers in compensated cirrhosis: insights for assessing disease progression

Parameter

Sequence

Readout

Echo time/TR (ms)

FoV (mm3)

Voxel size (mm3)

 

Sequence specific

Scan duration (s)

Volume

     

Orientation

  

 Liver, spleen, kidneys

Anatomical

BTFE

1.5/3.3

400 × 400 × 175

1.56 × 1.56 × 7

Coronal

 

18

Blood flow

     

VENC (cm/s)

Phases

 

 Superior mesenteric artery

PC-MRI

TFE

3.7/6.9

150 × 280 × 6

1.17 × 1.17 × 6

140

15

15−20

 Hepatic artery

PC-MRI

TFE

3.7/6.9

150 × 280 × 6

1.17 × 1.17 × 6

100

15

15−20

 Splenic artery

PC-MRI

TFE

3.7/6.9

150 × 280 × 6

1.17 × 1.17 × 6

100

15

15−20

 Right renal artery

PC-MRI

TFE

3.7/0.9

150 × 280 × 6

1.17 × 1.17 × 6

100

15

15−20

 Portal vein

PC-MRI

TFE

3.7/6.9

150 × 280 × 6

1.17 × 1.17 × 6

50

15

15−20

Cardiac

     

VENC (cm/s)

Phases

 

 Cardiac Output

PC-MRI of ascending aorta

TFE

3.7/6.9

280 × 280 × 6

1.17 × 1.17 × 6

200

30

60

 Left ventricle wall mass

Short-axis cine MRI

TFE

1.25/2.5

370 × 370 × 96

2 × 2 × 8

Oblique

30

4′ 15−20 s

Organ Perfusion

      

ASL parameters

 

 Liver

FAIR-ASL

BFFE

1.2/2.4

288 × 288 × 39

3 × 3 × 8

Sagittal right lobe

TI 1,100 ms, 60 pairs

~ 360

 Spleen and Kidneys

FAIR-ASL

BFFE

1.2/2.4

288 × 288 × 25

3 × 3 × 5

Coronal oblique through kidney long axis

TI 1,100 ms, 30 pairs

~ 180

Microstructure

      

Inversion times (ms)

 

 Liver

Inversion recovery T1 mapping

FS SE-EPI

27/8,000

288 × 288 × 39

3 × 3 × 8

Sagittal right lobe

100–1,200 ms in 100 ms steps + 1,500 ms

~120

 Spleen and kidneys

Inversion recovery T1 mapping

BFFE

1.2/2.4

288 × 288 × 25

3 × 3 × 5

Coronal oblique through kidney long axis

100–900 ms in 100 ms steps

~120

  1. BFFE Balanced fast field-echo, BTFE Balanced turbo-field-echo, FAIR ASL Flow alternating inversion-recovery arterial spin labelling, FoV Field of view, FS Fat-suppressed, PC-MRI Phase-contrast MRI, SE-EPI Spin-echo echo-planar imaging, TFE Turbo field-echo, TI Inversion time, TR Repetition time, VENC Velocity encoding