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Table 1 Magnetic resonance sequences and parameters for axial imaging in kiwifruits and human prostates at two different institutions (site 1, site 2)

From: Two-centre comparative experimental study of biparametric MRI at 3.0 T with and without endorectal coil using kiwifruit (Actinidia deliciosa) as a phantom for human prostate

Parameter

T2WI site 1

T2WI site 2

DWIreduced site 1

DWIreduced site 2

Field of view (mm2)

180 × 180

160 × 160

149 × 73

179 × 71

Imaging matrix

320 × 320

320 × 320

90 × 44

140 × 42

Slice thickness (mm)

3.0

3.0

3.5

3.5

Slice spacing (mm)

3.0

3.3

3.5

3.5

Voxel size (mm3)

0.56 × 0.56 × 3.00

0.50 × 0.50 × 3.00

1.66 × 1.66 × 3.50

1.28 × 1.69 × 3.50

No. of slices

26

30

20

22

PAT mode

GRAPPA

GRAPPA

n/a

n/a

Acceleration factor PE

2

2

n/a

n/a

Echo time (ms)

101

98

74

74

Echo train length

25

17

38

42

Time to repeat (ms)

7500

7400

4500

4500

Bandwidth (Hz/px)

200

180

1500

1190

b value (s/mm2)

n/a

n/a

50, 400, 800

50, 800

Number of excitations

3

2

2, 5, 12 (per b value)

4, 16 (per b value)

Acquisition time (min:s)

04:22

04:38

04:32

04:44

Flip angle

160°

120°

90°

90°

Percent sampling

100

100

100

75

Percent phase field of view

100

100

48.9

40

  1. ADC apparent diffusion coefficient, DWIreduced echo-planar diffusion-weighted imaging with reduced field of view and selective excitation, GRAPPA generalised autocalibrating partially parallel acquisition, n/a not applicable, PAT parallel acquisition technique, T2WI T2-weighted turbo-spin-echo imaging