Table 1.
Parameters of the SPION-MRI sequences obtained before and after intraprostatic SPION injection for identification of sentinel lymph nodes in prostate cancer patients
| Parameters | Sequences | |||||
|---|---|---|---|---|---|---|
| STIR | T1w SE | T2w TSE | T2w fat-sat TSE | T2* GRE (hemo) | DW-EPI | |
| Plane | Coronal | Transversal | Transversal | Transversal | Transversal | Transversal |
| TR/TE | 5,350/67 ms | 659/10 ms | 3,500/89 ms | 3,500/89 ms | 40/1.26 ms 40/2.86 ms |
2,734/61 ms |
| Flip angle | 150° | 141° | 160° | 160° | 20° | N/A |
| Slice thickness | 4 mm | 4 mm | 4 mm | 4 mm | 4 mm | 4 mm |
| FOV | 380 mm | 400 mm | 400 mm | 400 mm | 400 mm | 400 mm |
| Matrix | 256 | 256 | 320 | 320 | 208 | 128 |
| Imaging time | 2:31 minutes | 2:48 minutes | 2:58 minutes | 2:40 minutes | 3:14 minutes | 1:56 minutes |
Abbreviations: DW, diffusion weighted; EPI, echo planar imaging; FOV, field of view; GRE, gradient-recalled echo; SE, spin echo; SPION, superparamagnetic iron oxide nanoparticles; STIR, short-tau inversion recovery; TE, echo time; TR, repetition time; TSE, turbo; N/A, not applicable.