Table 1.
Multiparametric MR imaging sequence parameters at 3T.
| Parameter | T2 Weighted | DWIa | High b-Value DWIb |
DCE MR Imagingc |
|---|---|---|---|---|
| Field of view (mm) | 140 × 140 | 140 × 140 | 140 × 140 | 262 × 262 |
| Acquisition matrix | 304 × 234 | 112 × 109 | 76 × 78 | 188 × 96 |
| Repetition time (msec) | 4434 | 4986 | 6987 | 3.7 |
| Echo time (msec) | 120 | 54 | 52 | 2.3 |
| Flip angle (degrees) | 90 | 90 | 90 | 8.5 |
| Section thickness (mm), no gaps | 3 | 3 | 3 | 3 |
| Image reconstruction matrix (pixels) | 512 × 512 | 256 × 256 | 256 × 256 | 256 × 256 |
| Reconstruction voxel imaging resolution (mm/pixel) |
0.27 × 0.27 × 3.00 |
0.55 × 0.55 × 2.73 |
0.55 × 0.55 × 2.73 |
1.02 × 1.02 × 3.00 |
| Time for acquisition (min:sec) | 2:48 | 4:54 | 3:50 | 5:16 |
For ADC map calculation. Five evenly-spaced b values (0–750 sec/mm2) were used.
b= 2000 sec/mm2
DCE images obtained before, during, and after a single dose of gadopentetate dimeglumine 0.1 mmol/kg at 3 mL/sec. Each sequence obtained at 5.6 -sec intervals.