Table 2 Magnetic resonance imaging parameters.
Parameter | Center 1 | Center 2 | Center 3 | |
|---|---|---|---|---|
Scanner 1 | Scanner 2 | Scanner 3 | Scanner 4 | |
Manufacturer | Siemens Healthcare, Erlangen, Germany | GE HealthCare, Milwaukee, USA | Siemens Healthcare, Erlangen, Germany | Siemens Healthcare, Erlangen, Germany |
Model | 3T Magnetom Skyra | 3T SIGNA Pioneer | 3T Magnetom Skyra | 3T Magnetom Skyra |
T2WI | ||||
TR/TE (ms) | 7120/89 | 3286/85 | 9040/89 | 7120/89 |
NEX | 2 | 3 | 3 | 2 |
FOV (mm) | 220*220 | 220*220 | 200*200 | 220*220 |
ST (mm) | 3.5 | 4 | 3.5 | 3.5 |
Spacing (mm) | 0.5 | 0.5 | 0 | 0.5 |
Matrix | 320*320 | 288*256 | 320*256 | 320*320 |
DCE | ||||
TR/TE (ms) | 3.56/1.39 | 5.9/2.3 | 3.56/1.39 | 5.08/1.74 |
NEX | 1 | 1 | 1 | 1 |
FOV (mm) | 350*350 | 280*280 | 350*350 | 220*220 |
ST (mm) | 3 | 4 | 3 | 3.6 |
Matrix | 384*384 | 300*256 | 384*384 | 192*192 |
Number of phases | 18 | 18 | 18 | 20 |
Phase duration (s) | 11 | 11 | 11 | 11 |
DWI | ||||
TR/TE (ms) | 4670/63 | 4581/74.1 | 6680/66 | 6500/63 |
NEX | 2 | 8 | 2 | 2, 2, 6, 6 |
FOV (mm) | 220*220 | 220*220 | 200*200 | 196*228 |
ST (mm) | 3.5 | 4 | 3 | 3 |
Spacing (mm) | 1 | 1 | 0 | 1 |
Matrix | 88*116 | 102*50 | 116*116 | 98*114 |
b-values (s/mm2) | 0 or 50, 1000,1500 | 0, 1000,1500 | 50, 1000, 1500 | 50, 500, 1000,2000 |
