Instructions And Patient Preparation
- Instructions
- • Instruct patients to try not to swallow, lick their lips, or move their chin
• If using H >> F phase direction for Sagittal sequences, anterior Sat band is not needed
• Sagittal DWI: Monopolar, Diff weight 2 b Value 0 & 400 (1 & 2 avg)
• Typically done without contrast - Common Indications
- Tumor, multiple sclerosis, infection
- Position
- Supine, head first
- Coil
- 20 Channel Head/Neck coil or better
- Landmark
- Chin
Contrast Agent Parameters
| Contrast Agent | Dose | Injection Rate | |||||
|---|---|---|---|---|---|---|---|
| Gadopiclenol (VUEWAY) | 0.05 mmol/kg | Hand Bolus | |||||
| Saline Flush | 10 mL | Hand Bolus | |||||
| Comments | Report agent administered and dose | ||||||
Imaging Parameters
| Scan Description | SAGITTAL T2 |
SAGITTAL T1 |
SAGITTAL STIR |
AXIAL MEDIC |
AXIAL T2 |
Post SAGITTAL T1 DIXON |
Post AXIAL T1 DIXON |
|---|---|---|---|---|---|---|---|
| View Image | View Image | View Image | View Image | View Image | View Image | View Image | |
| Primary Sequence | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Pulse Sequence | tseR_rr | slice sel ir | tir | me_r | tse_rs | tse | tse |
| Mode | 2D | 2D | 2D | 2D | 2D | 2D | 2D |
| I-Pat | 2 | 2 | 2 | 3 | 2 | 2 | 2 |
Scan Parameters
| Scan Description | SAGITTAL T2 |
SAGITTAL T1 |
SAGITTAL STIR |
AXIAL MEDIC |
AXIAL T2 |
Post SAGITTAL T1 DIXON |
Post AXIAL T1 DIXON |
|---|---|---|---|---|---|---|---|
| TE | 93 | 9 | 50 | 8-10 | 83 | 10 | 11 |
| TR | 3200 | 1070 | 3500 | 400-800 | 3070 | 600 | 700 |
| TI | ― | 500 | 210 | ― | ― | ― | ― |
| Flip Angle | 120-180 | 120-180 | 140 | 30 | 120-180 | 140 | 160 |
| Turbo Factor | 19 | 10 | 14 | ― | 16 | 3 | 3 |
| Bandwidth | 260 | 254 | 200 | 330 | 250 | 330 | 355 |
| Fat Sat | ― | ― | ― | ― | ― | Strong | Strong |
| Gradient Speed | Normal | Normal | Normal | Normal | Normal | Normal | Normal |
| RF Mode | Normal | Normal | Normal | Normal | Normal | Normal | Normal |
Acquisition Parameters
| Scan Description | SAGITTAL T2 |
SAGITTAL T1 |
SAGITTAL STIR |
AXIAL MEDIC |
AXIAL T2 |
Post SAGITTAL T1 DIXON |
Post AXIAL T1 DIXON |
|---|---|---|---|---|---|---|---|
| MATRIX Freq | 448 | 256 | 256 | 192 | 256 | 384 | 256 |
| MATRIX Phase | 100% | 100% | 100% | 100% | 100% | 60% | 60% |
| Averages | 2 | 2 | 2 | 3 | 2 | 2 | 2 |
| Concatenations | 1 | 3 | 1 | 1 | 2 | 1 | 2 |
| Rec FOV | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| Phase DIR | H >> F | H >> F | H >> F | A >> P | A >> P | H >> F | A >> P |
| Phase Over Sample | 75% | 70% | 70% | 30% | 25% | 75% | 30% |
| Partial Fourier | Off | Off | Off | Off | Off | Off | Off |
| FC Direction | Read | None | Read | On | On | None | None |
Scanning Range
| Scan Description | SAGITTAL T2 |
SAGITTAL T1 |
SAGITTAL STIR |
AXIAL MEDIC |
AXIAL T2 |
Post SAGITTAL T1 DIXON |
Post AXIAL T1 DIXON |
|---|---|---|---|---|---|---|---|
| FOV | 200 | 200 | 200 | 180 | 180 | 180 | 180 |
| Filter | Prescan | Prescan | B1 Filter | Prescan | Prescan | Prescan | Prescan |
| Slice Thickness | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 |
| Spacing % | 25% | 25% | 25% | 10% | 10% | 25% | 10% |
| Number of Slices | 15 | 15 | 15 | 30 | 30 | 15 | 30 |
| Acquisition Time | 1:28 min | 2:26 min | 1:57 min | 3:44 min | 2:10 min | 2:45 min | 3:13 min |
