Table 2 Typical MRI sequence parameters
TE (ms) | TR (ms)/delay between contrast preparations pulses | FA (°) | FOV (mm) | Matrix | Preparation pulse delays (ms) | iPAT/SENSE factor | Receiver BW (kHz) | ACQ time (hh:mm:ss) | |
|---|---|---|---|---|---|---|---|---|---|
T1 spin-echo IR (magnitude images) | 5.8 | 10,000/10,000 | 90 | 241 × 241 | 128 × 128 | [21, 60, 100, 200, 300, 500, 660, 900, 1050, 1300, 1600, 2000, 2250, 2500, 3000, 3500, 4300] | off | 64 | 06:45:20 |
T1 PSIR | 1.11 | 2.4/40,000 | 35 | 360 × 270 | 192 × 144 | [150, 300, 400, 500, 700, 900, 1100, 1300, 1800, 2000, 2500, 3000, 3700, 4300, 5000, 6300] + 1 reference image without IR-preparation | 2 | 208.32 | 00:11:20 |
T1 saturation recovery balanced SSFP | 1.11 | 2.4/40,000 | 35 | 360 × 270 | 192 × 144 | [150, 300, 400, 500, 700, 900, 1100, 1300, 1800, 2000, 2500, 3000, 3700, 4300, 5000, 5600, 6300, 8000] + 1 reference image without SR preparation | 2 | 208.32 | 00:12:40 |
T1 MOLLI/T1 Look-Locker correction (magnitude and PSIR images) | 1.1 | 2.4/7920 | 35 | 360 × 270 | 192 × 144 | [130, 210, 1130, 1210, 2130, 2210, 3130, 4130] | 2 | 208.32 | 00:00:11 |
T2 spin echo (single-echo) | [6, 12, 20, 30, 40, 50, 70, 90, 120, 140, 180, 300, 400, 600, 1000] | 10,000/10,000 | 90 | 241 × 241 | 128 × 128 | n/a | off | 64 | 05:20:00 |
T2 spin echo (multi-echo) | [9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108, 117, 126, 135, 144] | 1500/n/a | 90 | 160 × 160 | 256 × 256 | n/a | off | 62.5 | 00:06:24 |
T2-prepared balanced SSFP | 1.11 | 2.4/20,000 | 35 | 360 × 270 | 192 × 144 | T2p range = 25 − 200; ΔT2p = 5; | 2 | 208.32 | 00:12:20 |