TABLE 2:
Multiparametric MRI Acquisition Parameters at 3 T
| Parameter | T2-Weighted | DWIa | High-b-Value DWIb | DCE-MRIc |
|---|---|---|---|---|
| FOV (mm) | 140 × 140 | 140 × 140 | 140 × 140 | 262 × 262 |
| Acquisition matrix | 304 × 234 | 112 × 109 | 76 × 78 | 188 × 96 |
| TR (ms) | 4434 | 4986 | 6987 | 3.7 |
| TE (ms) | 120 | 54 | 52 | 2.3 |
| Flip angle (°) | 90 | 90 | 90 | 8.5 |
| Section thickness (mm), no gap | 3 | 3 | 3 | 3 |
| Image reconstruction matrix | 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:s) | 2:48 | 4:54 | 3:50 | 5:16 |
Note—Multiparametric MRI parameters are given for prostate imaging at 3 T with use of an endorectal coil. DCE = dynamic contrast-enhanced.
a
For apparent diffusion coefficient map calculation. Five evenly spaced b values (0–750 s/mm2) were used.
b
b = 2000 s/mm2.
c
Images obtained before, during, and after administration of single dose of gadopentetate dimeglumine 0.1 mmol/kg at 3 mL/s. Acquisitions performed at 5.6-second intervals.