Instructions And Patient Preparation
- Instructions
- Contrast is used for assessment of the blood-brain barrier, infection, tumor, and some stroke evaluation
- Position
- Supine, head first
- Coil
- 20 channel Head or Head/Neck coil or better
- Landmark
- Glabella
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 • Use minimal dose for patients with a GFR <60 mL/sec |
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Imaging Parameters
| Scan Description | AXIAL DWI |
SAGITTAL T1 |
AXIAL GRE |
AXIAL T2 |
AXIAL T1 |
AXIAL FLAIR |
Post SAGITTAL T1 SPACE |
|---|---|---|---|---|---|---|---|
| View Image | View Image | View Image | View Image | View Image | View Image | View Image | |
| Sequence Name | epse | tir | fl_r | tseB | tir | tirB | spcR |
| Dimension | ― | 2D | 2D | 2D | 2D | 2D | 3D |
| Acceleration Mode | GRAPPA | GRAPPA | GRAPPA | GRAPPA | GRAPPA | GRAPPA | GRAPPA |
| Acceleration Factor PE | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Acceleration Factor 3D | ― | ― | ― | ― | ― | ― | 2 |
| AutoAlign | Head > Brain | Head > Basis | Head > Brain | Head > Brain | Head > Brain | Head > Brain | Head > Brain |
Scan Parameters
| Scan Description | AXIAL DWI |
SAGITTAL T1 |
AXIAL GRE |
AXIAL T2 |
AXIAL T1 |
AXIAL FLAIR |
Post SAGITTAL T1 SPACE |
|---|---|---|---|---|---|---|---|
| TR | 6700.0 ms | 1800.0 ms | 743.0 ms | 3000.0 ms | 1800.0 ms | 8000.0 ms | 700 ms |
| TE | 73.00 ms | 9 ms | 19.90 ms | 101 ms | 9 ms | 98 ms | 16 ms |
| TI | ― | 818 ms | ― | ― | 818 ms | 2370 ms | ― |
| Flip Angle | ― | 150 deg | 20 deg | 90 deg | 150 deg | 150 deg | ― |
| Turbo Factor | ― | 4 | ― | 24 | 5 | 28 | 42 |
| Bandwidth | 1502 Hz/Px | 260 Hz/Px | 220 Hz/Px | 363 Hz/Px | 260 Hz/Px | 363 Hz/Px | 630 Hz/Px |
| EPI Factor | 128 | ― | ― | ― | ― | ― | ― |
| Fat Suppression | Strong | None | None | None | None | Fat Sat | None |
| Fat Saturation Mode | Fat Saturation | ― | ― | ― | ― | Strong | ― |
| Water Suppression | ― | ― | None | None | None | None | ― |
| Gradient Mode | Fast | Fast | Fast | Fast | Fast | Fast | Normal |
| RF Pulse Type | Normal | Normal | Fast | Fast | Normal | Fast | Normal |
Acquisition Parameters
| Scan Description | AXIAL DWI |
SAGITTAL T1 |
AXIAL GRE |
AXIAL T2 |
AXIAL T1 |
AXIAL FLAIR |
Post SAGITTAL T1 SPACE |
|---|---|---|---|---|---|---|---|
| Base Resolution | 128 | 320 | 320 | 320 | 320 | 320 | 256 |
| Phase Resolution | 100% | 70% | 75% | ― | 70% | ― | 100% |
| Slice Resolution | ― | ― | ― | ― | ― | ― | 91% |
| Averages | 1, 2 | 1 | 1 | 1 | 1 | 1 | 1.6 |
| Averaging Mode | ― | Long term | Long term | Short term | Long term | Short term | ― |
| Concatenations | 1 | 2 | 1 | 2 | 2 | 2 | 1 |
| b-value | 0 s/mm2 1000 s/mm2 |
― | ― | ― | ― | ― | ― |
| FoV Read | 220 mm | 220 mm | 220 mm | 220 mm | 220 mm | 220 mm | 230 mm |
| FoV Phase | 100% | 100% | 100% | 100% | 88% | 100% | 100% |
| Phase Encoding Dir. | A >> P | A >> P | A >> P | R >> L | R >> L | R >> L | A >> P |
| Slice Oversampling | ― | ― | ― | ― | ― | ― | 0% |
| Phase Oversampling | 0% | 0% | 0% | 0% | 0% | 25% | 10% |
| Slice Partial Fourier | ― | ― | ― | ― | ― | ― | Off |
| Phase Partial Fourier | 6/8 | Off | Off | ― | Off | ― | Off |
| Flow Compensation | ― | No | Slice/Read | No | No | No | No |
Scanning Range
| Scan Description | AXIAL DWI |
SAGITTAL T1 |
AXIAL GRE |
AXIAL T2 |
AXIAL T1 |
AXIAL FLAIR |
Post SAGITTAL T1 SPACE |
|---|---|---|---|---|---|---|---|
| Filter | Off | Distortion Corr.(2D), Prescan Normalize, Elliptical filter |
Distortion Corr.(2D), Prescan Normalize, Elliptical filter |
Distortion Corr.(2D), Prescan Normalize | Distortion Corr.(2D), Prescan Normalize, Elliptical filter |
Distortion Corr.(2D), Prescan Normalize | Raw filter, Distortion Corr.(2D), Prescan Normalize |
| Elliptical Filter | ― | On | On | Off | On | Off | Off |
| Normalize | Prescan | Off | Off | Off | Off | Off | Off |
| Prescan Normalize | ― | On | On | On | On | On | On |
| Distortion Correction | Off | On | On | On | On | On | On |
| Slice Thickness | 5.0 mm | 5.0 mm | 5.0 mm | 5.0 mm | 5.0 mm | 5.0 mm | 1.0 mm |
| Distance Factor | 0% | 30% | 0% | 0% | 30% | 0% | ― |
| Slices | 30 Slices | 25 Slices | 30 Slices | 30 Slices | 24 Slices | 30 Slices | 176 Slices per Slab |
| Acquisition Time | 1:09 min | 1:57 min | 1:40 min | 1:38 min | 1:24 min | 4:18 min | 4:12 min |
