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Sequence parameters for thoracic cavity registration and the HP 129Xe ventilation image.
| Parameter | Thoracic cavity 1H image Steady-state free precession sequence |
HP 129Xe ventilation image Spoiled gradient echo sequence |
|---|---|---|
| Repetition time (msec) | 2.8 | 7.9 |
| Echo time (msec) | 1.2 | 1.9 |
| Flip angle (degrees) | 45 | 5 – 7 |
| Slice thickness (mm) | 15 | 15 |
| Field of view (cm2) | 40 × 40 | 40 × 28 – 40 |
| Acquisition matrix | 128 × 128 | 128 × 90 – 128 |
| Receiver bandwidth (kHz) | 125 | 8 |
| Acquisition time (sec) | 15 | 10–14 |
