Table 2 Summary of acquisition parameters range prior the optimisation related to Prostate Imaging Reporting and Data System (PiRADSv2 and v2.1)

Axial T₂-weighted

Field of view (mm)

120–200

200

170–240

Slice thickness (mm)

3

3.2

3–4

Slice gap (mm)

0

0.3

0.-0.75

Acquired pixel size (mm) × (mm)

≤ 0.4 (frequency)

0.7 (frequency)

0.5–1.0

≤ 0.7 (phase)

0.9 (phase)

0.6–1.3

Coronal T₂-weighted

Field of view (mm)

120–200

204

180–240

Slice thickness (mm)

3

3.1

3–4

Slice gap (mm)

0

0.3

0–0.7

Acquired pixel size (mm) × (mm)

≤ 0.4 (frequency)

0.7 (frequency)

0.5–1.0

≤ 0.7 (phase)

0.9 (phase)

0.6–1.1

Sagittal T₂-weighted

Field of view (mm)

120–200

212

180–250

Slice thickness (mm)

3

3.5

3–6

Slice gap (mm)

0

0.4

0–2

Acquired pixel size (mm) × (mm)

≤ 0.4 (frequency)

0.8 (frequency)

0.6–1.1

≤ 0.7 (phase)

1.0 (phase)

0.6–1.5

Diffusion-weighted MRI (DW-MRI)

Repetition time (ms)

≥ 3000

4921

1320 -23,651

Echo time (ms)

≤ 90

80

48–117

Field of view (mm)

160–220

275

220–380

Slice thickness (mm)

≤ 4

4.45

2.5–6

Slice gap (mm)

0

0.5

0–1

Acquired pixel size (mm) × (mm)

≤ 2.5 (frequency)

2.23

1.3–4.8

≤ 2.5 (phase)

2.64

1.5–4.8

Number of b-values for ADC map

At least 2 b-values

3.35

2–4

Proposed b-values (s/mm²)

(0), 50, 150, 500, 1000

High b-value (s/mm²)

1400 at 1.5 T

1333

1200–1500

2000 at 3 T

1400

1200–1600

Dynamic contrast-enhanced MRI (DCE-MRI)

Repetition time (ms)

< 100

5.4

3.2–8.2

Echo time (ms)

< 5

2.25

1.6–3.2

Field of view (mm)

Encompass the entire prostate gland and the seminal vesicles

274

205–400

Slice thickness (mm)

3

3

2–6

Slice gap (mm)

0

0.8

0–3

Acquired pixel size (mm) × (mm)

≤ 2.0 (frequency)

1.4

0.75–1.65

≤ 2.0 (phase)

1.5

0.75–2.07

Temporal resolution (s)

\(\le\) 10 (\(\le\) 15)

14.7

6–32

Total duration

≥ 2 min

5 min

2 min–10 min 46 sec