Parameters for time-resolved MR angiography at different IPAT factors
| Parameter | IPAT 0 | IPAT 2 | IPAT 3 |
|---|---|---|---|
| TR (msec) | 3.3 | 2.3 | 2.3 |
| TE (msec) | 1.1 | 0.8 | 0.8 |
| BW (msec) | 400 | 900 | 900 |
| TA (seconds) | 4.0 | 1.7 | 1.3 |
| Total TA (seconds) | 84 | 38 | 31 |
| Section thickness (mm) | 3 | 3 | 3 |
| Flip angle (°) | 20–25 | 20–25 | 25 |
| FOV | 167 × 250 | 167 × 250 | 167 × 250 |
| Matrix (pixels) | 128 × 192 | 128 × 192 | 128 × 192 |
| Voxel size | 1.3 × 1.3 × 3 | 1.3 × 1.3 × 3 | 1.3 × 1.3 × 3 |
Note:—BW indicates bandwidth; IPAT, integrated parallel acquisition technique; TA, acquisition time, FOV, field of view.