Centers | MR scanners | DWI sequence technique |
---|---|---|
1 | 2 different 1.5 T scanners: GE Medical (Milwaukee, WI, USA) and Achieva, Philips Healthcare, (Best, Netherlands) | FOV 160 × 192 mm slice thickness 5 mm TR 4200 ms TE 85 ms b-values 0, 250, 500, 750 and 1000 s/mm2 |
2 | 1.5 T Intera Achieva (Philips Medical Systems, Best, The Netherlands | FOV 360 × 216 mm slice thickness 5 mm TR 3783 ms TE 64 ms b-values: 0 and 800 s/mm2. |
3 | 3.0-T system (MR750, GE Healthcare) | FOV 350 × 350 mm Slice thickness 4 mm TR 5 ms TE 77.9 ms b-values: 0, 30, 60, 90, 120, 300, 600 and 900 s/mm2 |
4 | 2 different 1.5 T system (Signa; GE Medical Systems, Milwaukee, Wis, Aera; Siemens, Erlangen, Germany) | FOV 320 × 320, and 360 × 270 mm Slice thickness 4 mm TR 8000 and 6500 ms TE 65 and 66 ms b-values: 0 and 700 s/mm2 and 50 and 700 s/mm2 |