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Table. 2 Technical parameters of the diffusion-weighted imaging (DWI) sequence

From: Simplified intravoxel incoherent motion diffusion-weighted MRI of liver lesions: feasibility of combined two-colour index maps

Name

Value

Field of view (right-left × anterior-posterior)/orientation

380 × 326 mm/transversal

Slice number/thickness/gap

30/7.0 mm/0.7 mm

Matrix/resolution

112 × 94/3.4 × 3.5 mm

Echo time

63 ms

Repetition time

1 respiratory cycle

Imaging time per respiration

1,600 ms

Echo-planar imaging/half-Fourier/SENSE factor

51/0.6/2

Diffusion gradients

3 orthogonal directions

b values (number of averages per direction)

0, 50, and 250 s/mm2 (2); 800 s/mm2 (4)

Fat suppression methods

Spectral presaturation by inversion recovery, SPIR

Water-fat shift/bandwidth

9.2 pixel/23.6 Hz

Bandwidth in echo-planar imaging frequency direction

1,437.9 Hz

Acquisition time

Around 4 min (2:42 min:s without gating)

  1. SENSE Parallel imaging with sensitivity encoding