Multiple Sclerosis Brain 1.5T
Siemens Healthineers – MR Gadopiclenol (VUEWAY®) Protocols
Instructions And Patient Preparation
- Instructions
- These sequences done in addition to Routine Adult Brain protocol
- Position
- Supine, head first
- Coil
- 20 channel Head/Neck coil
- 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 | • May use Interpolation & Restore options • May scan postcontrast to allow more time for postcontrast T1 sequences • 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 |
AXIAL T2 |
SAGITTAL T1 MPRAGE |
AXIAL GRE |
Post SAGITTAL FLAIR SPACE |
Post SAGITTAL T1 SPACE |
|---|---|---|---|---|---|---|
| View Image | View Image | View Image | View Image | View Image | View Image | |
| Sequence Name | epse | tseB | tfl | fl_r | spcir | spcR |
| Dimension | ― | 2D | 3D | ― | 3D | 3D |
| Acceleration Mode | GRAPPA | None | GRAPPA | None | GRAPPA | GRAPPA |
| Acceleration Factor PE | 2 | ― | 2 | ― | 2 | 2 |
| Acceleration Factor 3D | ― | ― | 1 | ― | 1 | 1 |
| AutoAlign | Head > Brain | Head > Brain | Head > Brain | Head > Brain | Head > Brain | Head > Brain |
Acquisition Parameters
| Scan Description | AXIAL DWI |
AXIAL T2 |
SAGITTAL T1 MPRAGE |
AXIAL GRE |
Post SAGITTAL FLAIR SPACE |
Post SAGITTAL T1 SPACE |
|---|---|---|---|---|---|---|
| TR | 4900.0 ms | 3200.0 ms | 2200.0 ms | 858.0 ms | 5000.0 ms | 600.0 ms |
| TE | 98.00 ms | 109.00 ms | 3.39 ms | 23.90 ms | 338.00 ms | 8.40 ms |
| TI | ― | ― | 900 ms | ― | 1600 ms | ― |
| Flip Angle | ― | 150 deg | 8 deg | 20 deg | T2 Var | T1 Var |
| Turbo Factor | ― | 32 | 182 | ― | 249 | 36 |
| Bandwidth | 1184 Hz/Px | 363 Hz/Px | 150 Hz/Px | 200 Hz/Px | 592 Hz/Px | 630 Hz/Px |
| Echo Spacing | 1.04 ms | 6.42 ms | 8.46 ms | ― | 4.02 ms | 4.18 ms |
| EPI Factor | 128 | ― | ― | ― | ― | ― |
| Fat-Water Contrast | Fat Saturation | Standard | Standard | Standard | Fat Saturation | Standard |
| Fat Saturation | Weak | ― | ― | ― | Strong | ― |
| Gradient Mode | Fast | Fast | Fast | Fast | Fast | Fast |
| RF Pulse Type | Normal | Fast | Fast | Fast | Fast | Normal |
| Asymmetric Echo | ― | ― | Allowed | Off | ― | ― |
Scan Parameters
| Scan Description | AXIAL DWI |
AXIAL T2 |
SAGITTAL T1 MPRAGE |
AXIAL GRE |
Post SAGITTAL FLAIR SPACE |
Post SAGITTAL T1 SPACE |
|---|---|---|---|---|---|---|
| Base Resolution | 128 | 320 | 256 | 288 | 256 | 256 |
| Phase Resolution | 100% | ― | 100% | 75% | 100% | 100% |
| Slice Resolution | ― | ― | 81% | ― | 80% | 86% |
| Averages | ― | 1 | 1 | 1 | 1 | 1 |
| Concatenations | 1 | 2 | 1 | 1 | 1 | 1 |
| b-value | 0 s/mm2 1000 s/mm2 |
― | ― | ― | ― | ― |
| FoV Read | 220 mm | 220 mm | 240 mm | 220 mm | 250 mm | 230 mm |
| FoV Phase | 100% | 100% | 100% | 100% | 100% | 100% |
| Phase Encoding Dir. | A >> P | R >> L | A >> P | A >> P | A >> P | A >> P |
| Slice Oversampling | ― | ― | 17% | ― | 0% | 0% |
| Phase Oversampling | 0% | 0% | 10% | 0% | 0% | 0% |
| Slice Partial Fourier | ― | ― | Off | ― | Off | Off |
| Phase Partial Fourier | 6/8 | ― | Off | Off | Allowed | Off |
| Flow Compensation | ― | None | None | On | None | None |
Scanning Range
| Scan Description | AXIAL DWI |
AXIAL T2 |
SAGITTAL T1 MPRAGE |
AXIAL GRE |
Post SAGITTAL FLAIR SPACE |
Post SAGITTAL T1 SPACE |
|---|---|---|---|---|---|---|
| Elliptical Filter | Off | Off | On | On | Off | Off |
| Normalize | Prescan | Prescan | Prescan | Prescan | Prescan | Prescan |
| Distortion Correction | Off | 2D | 2D | 2D | 2D | 2D |
| Distance Factor | 0% | 0% | 50% | 0% | ― | ― |
| Slice Thickness | 5.0 mm | 5.0 mm | 1.2 mm | 5.0 mm | 1.0 mm | 0.9 mm |
| Slices | 30 Slices | 30 Slices | 192 Slices per Slab |
30 Slices | 176 Slices per Slab |
192 Slices per Slab |
| Acquisition Time | 51 sec | 1:50 min | 5:38 min | 3:07 min | 5:27 min | 5:15 min |