Table 1.
Scanning parameters for 3D-SPGR with 1.5-Tesla MR imaging, 3.0-Tesla MR imaging and CT as a reference for stereotactic coordinates
| 3D-SPGR |
CT | |||
|---|---|---|---|---|
| 1.5-Tesla MR imaging | 3.0-Tesla MR imaging | |||
| Plane | Axial | Axial | Scan mode | Non-helical |
| Mode | 3D | 3D | Voltage (kV) | 120 |
| TE (ms) | Min full (5.06) | Min full (3.2) | Current (mA) | 170 |
| ETL | 1 | 1 | Number of slices | 120 |
| Flip angle (degree) | 30 | 30 | Slice thickness | 1.0 |
| Bandwidth (kHz) | 15.63 | 15.63 | Slice gap (mm) | 0 |
| NEX | 1 | 1 | FOV (cm) | 30 |
| FOV (cm) | 24 | 24 | ||
| Matrix size | 256 × 256 | 256 × 256 | ||
| Slice thickness (mm) | 1.0 | 1.0 | ||
| No. of slices | 190 | 190 | ||
| Scan time (min) | 8:26 | 8:47 | ||
TE = echo time, TR = repetition time, ETL = echo train length, NEX = number of excitations, FOV = field of view, SPGR = spoiled gradient recalled acquisition in the steady state.