Dynamic gadolinium MRI technique for imaging of the TMJ
| Parameters | Details |
|---|---|
| Sequence | Coronal T1 postgadolinium, 70-sec, 10-sec prescan |
| TR/TE (ms) | 400/15 |
| Frequency × phase | 300 × 200 |
| NEX | 1 |
| Section thickness | 3 mm, 0-mm gap |
| FOV | 14–16 cm |
| Timing of the serial runs | Runs: run 0, pregadolinium run, followed by 10 postgadolinium runs with the following timing intervals: run 1: 0 -1 min 10 sec, run 2: 1 min 20 sec to 2 min 30 sec; run 3: 2 min 40 sec to 3 min 50 sec; run 4: 4 min 00 sec to 5 min 10 sec; run 5: 5 min 20 sec to 6 min 30 sec; run 6: 6 min 40 sec to 7 min 50 sec; run 7: 8 min 00 sec to 9 min 10 sec; run 8: 9 min 20 sec to 10 min 30 sec; run 9: 10 min 40 sec to 11 min 50 sec; run 10: 12 min 00 sec to 13 min 10 sec |
| Injection technique | Standard supine position |
| 22-ga angiocatheter in right antecubital fossa, attached to 20-cm length of standard tubing connected to a power injector | |
| Contrast agent and dosing | Gadoterate meglumine (Dotarem)a maintained at room temperature was drawn up at a dose of 0.2 mL/kg (0.1 mmol/kg) of body weight |
| Simultaneous with the start of the first coronal T1 dynamic sequence, run 1, gadoterate was administered by power injector as a single intravenous bolus injection at a flow rate of 2.5 mL/s followed by a 20-mL saline chaser at the same injection rate |
↵a Guerbet, Aulnay-sous-Bois, France.