Table 3 MRI Acquisition parameters in Phantom and Clinical Study.

From: Development of respiratory motion-resolved hepatobiliary phase cine-magnetic resonance imaging for stereotactic body radiotherapy in liver tumor

Sequence

Phantom study

Clinical study

Acquisition mode

Cartesian

Cartesian

Shot mode

Single-shot

Single-shot

Freq FOV (cm) / phase FOV

256 × 256

380 × 300

Slice thickness / spacing (mm)

1 / 0

3 / 0

Number of slice

1

2

Cross sectional image

Coronal

Sagittal

Voxel size (reconstructed)

1.0 × 1.0 × 1.0

1.0 × 1.0 × 3.0

TR (ms)

2.7

3.1

TE (ms)

1.23

1.46

Flip angle (degree)

5/10/15/20/25/30/35/40/45/50

30

Bandwidth (Hz)

868.1

1083.5

Fat suppression

SPIR

SPIR

TFE factor

32

40

Shot interval

Shortest

Shortest

TFE prepulse / pulse type

Saturate/Composite

Saturate / Composite

TFE prepulse delay (ms)

50/100/200/300/400

150

TFE shot duration (ms)

246.8

285

Accelarated factor

CS 4

SENSE 4 / CS 4

Denoising level

Strong

No / Strong

  1. FOV, field of view; TR, repetition time; TE, echo time; TFE, turbo field echo; SPIR, spectral presaturation with inversion recovery; SENSE, sensitivity encoding; CS, compressed SENSE.
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