Tumor Brain 3T
Siemens Healthineers – MR Gadopiclenol (VUEWAY®) Protocols
Instructions And Patient Preparation
- Instructions
- Contrast used to evaluate blood-brain barrier and for suspected tumor or infection
- Position
- Supine, head first
- Coil
- 20 channel Head/Neck coil
- Landmark
- Glabella
Contrast Agent Parameters
| Contrast Agent | Dose | Injection Rate | Dose Timing Method and Scan Delay | |||||
|---|---|---|---|---|---|---|---|---|
| Gadopiclenol (VUEWAY) | 0.05 mmol/kg | Hand Bolus or Power Injection | Hand Bolus or for dynamic susceptibility contrast (DSC) Perfusion use Power Injector to inject at 3-4 mL/sec after 5-6 measures | |||||
| Saline Flush | 10-20 mL | Hand Bolus or Power Injection | ― | |||||
| Comments | • May use Interpolation and Restore options • If RESOLVE is unavailable, b-values 0 & 1000 • Pre- and postsequence should be identical and isotropic • 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 T1 |
AXIAL PERFUSION DSC |
AXIAL T2 |
Post SAGITTAL 3D FLAIR SPACE |
Post SAGITTAL 3D T1 SPACE |
|---|---|---|---|---|---|---|---|---|
| View Image | View Image | View Image | View Image | View Image | View Image | View Image | View Image | |
| Sequence Name | epse | tir | fl_r | tir | epfid | tseB | spcir | spcR |
| Mode | ― | 2D | 2D | 2D | 2D | 2D | 2D | 2D |
| PAT Mode | GRAPPA | GRAPPA | GRAPPA | GRAPPA | GRAPPA | GRAPPA | GRAPPA | GRAPPA |
| Dimension | ― | 2D | 2D | 2D | ― | 2D | 3D | 3D |
| Acceleration Factor PE | 2 | 2 | 2 | 2 | 3 | 2 | 2 | 2 |
| Acceleration Factor 3D | ― | ― | ― | ― | ― | ― | 1 | 2 |
| AutoAlign | Head > Brain | Head > Basis | Head > Brain | Head > Brain | Head > Brain | Head > Brain | Head > Brain | Head > Brain |
Scan Parameters
| Scan Description | AXIAL DWI |
SAGITTAL T1 |
AXIAL GRE |
AXIAL T1 |
AXIAL PERFUSION DSC |
AXIAL T2 |
Post SAGITTAL 3D FLAIR SPACE |
Post SAGITTAL 3D T1 SPACE |
|---|---|---|---|---|---|---|---|---|
| TR | 6700.0 ms | 1800.0 ms | 743.0 ms | 1800.0 ms | 1650 ms | 3000.0 ms | 5000 ms | 700 ms |
| TE | 73.00 ms | 9 ms | 19.90 ms | 9 ms | 30.0 ms | 101 ms | 398 ms | 11.0 ms |
| TI | ― | 818 ms | ― | 818 ms | ― | ― | ― | ― |
| Flip Angle | ― | 150 deg | 20 deg | 150 deg | 90 deg | 90 deg | Mode: T2 var | Mode: T1 var |
| Turbo Factor | ― | 4 | ― | 5 | ― | 24 | 284 | 38 |
| Bandwidth | 1502 Hz/Px | 260 Hz/Px | 220 Hz/Px | 260 Hz/Px | 1446 Hz/Px | 363 Hz/Px | 781 Hz/Px | 630 Hz/Px |
| EPI Factor | 128 | ― | ― | ― | ― | ― | ― | ― |
| Fat Saturation Mode | Strong | ― | ― | ― | ― | ― | Strong | ― |
| Fat Suppression | Fat Saturation | None | None | None | Fat sat. | None | Fat sat. | None |
| Water Suppression | ― | None | None | None | ― | None | ― | ― |
| Gradient Mode | Fast | Fast | Fast | Fast | Fast | Fast | Fast | Fast |
| RF Pulse Type | Normal | Normal | Fast | Normal | Normal | Fast | Normal | Normal |
| Asymmetric Echo | ― | ― | Off | ― | ― | ― | ― | ― |
Acquisition Parameters
| Scan Description | AXIAL DWI |
SAGITTAL T1 |
AXIAL GRE |
AXIAL T1 |
AXIAL PERFUSION DSC |
AXIAL T2 |
Post SAGITTAL 3D FLAIR SPACE |
Post SAGITTAL 3D T1 SPACE |
|---|---|---|---|---|---|---|---|---|
| Base Resolution | 128 | 320 | 320 | 320 | 128 | 320 | 256 | 256 |
| Phase Resolution | 100% | 70% | 75% | 70% | 100% | ― | 100% | 100% |
| Slice Resolution | ― | ― | ― | ― | ― | ― | 80% | 91% |
| Averages | 1, 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1.4 |
| Averaging Mode | ― | Long term | Long term | Long term | Long term | Short term | ― | ― |
| Concatenations | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 1 |
| b-value | 0 s/mm2 1000 s/mm2 |
― | ― | ― | ― | ― | ― | ― |
| FoV Read | 220 mm | 220 mm | 220 mm | 220 mm | 220 mm | 220 mm | 250 mm | 230 mm |
| FoV Phase | 100% | 100% | 100% | 88% | 100% | 100% | 100% | 100% |
| Phase Encoding Dir. | A >> P | A >> P | A >> P | R >> L | A >> P | R >> L | A >> P | A >> P |
| Phase Oversampling | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 10% |
| Slice Oversampling | ― | ― | ― | ― | ― | ― | ― | 0% |
| Phase Partial Fourier | 6/8 | Off | ― | Off | Off | ― | Allowed | Off |
| Slice Partial Fourier | ― | ― | Off | ― | ― | ― | 6/8 | Off |
| Flow Compensation | ― | No | Slice/Read | No | ― | No | No | No |
Scanning Range
| Scan Description | AXIAL DWI |
SAGITTAL T1 |
AXIAL GRE |
AXIAL T1 |
AXIAL PERFUSION DSC |
AXIAL T2 |
Post SAGITTAL 3D FLAIR SPACE |
Post SAGITTAL 3D T1 SPACE |
|---|---|---|---|---|---|---|---|---|
| Elliptical Filter | Off | On | On | On | Off | Off | Off | Off |
| Filter | ― | Distortion Corr.(2D), Prescan Normalize, Elliptical filter |
Distortion Corr.(2D), Prescan Normalize, Elliptical filter |
Distortion Corr.(2D), Prescan Normalize, Elliptical filter |
Raw filter, Distortion Corr.(2D), Prescan Normalize |
Distortion Corr.(2D), Prescan Normalize |
Raw filter, Distortion Corr.(2D), Prescan Normalize |
Raw filter, Distortion Corr.(2D), Prescan Normalize |
| Normalize | Prescan | Off | Off | Off | On | Off | On | Off |
| Prescan Normalize | ― | On | On | On | 0% | On | Off | On |
| Distortion Correction | Off | On | 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 | 1.0 mm |
| Distance Factor | 0% | 30% | 0% | 30% | ― | 0% | ― | ― |
| Slices | 30 Slices | 25 Slices | 30 Slices | 24 Slices | 25 Slices | 30 Slices | 176 Slices per Slab |
176 Slices per Slab |
| Acquisition Time | 1:09 min | 1:57 min | 1:40 min | 1:24 min | 1:49 min | 1:38 min | 3:42 min | 4:04 min |