Soft Tissue Neck 1.5T
Siemens Healthineers – MR Gadopiclenol (VUEWAY®) Protocols
Instructions And Patient Preparation
- Instructions
- • Flow Compensation is an option for all sequences
• Use pre- and postcontrast T1 when using Flow Compensation
• If contrast is used, lesions and cancer staging slices may vary based on indication
• Coronal coverage – top of orbits thru manubrium
• Axial coverage – tailored to area of interest (nasopharynx/oropharynx/parotids) cover lesions or area of interest - Position
- Supine, head first
- Coil
- Head/Neck coil
- 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 | • No Fat Sat on precontrast • Use Fast DIXON with Strong Fat Sat. Use Interpolation • Report agent administered and dose • Use minimal dose for patients with a GFR <60 mL/sec |
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Imaging Parameters
| Scan Description | SAGITTAL T1 |
Pre AXIAL T1 |
AXIAL T2 Fat Sat DIXON |
AXIAL DWI |
CORONAL T2 |
Post AXIAL T1 DIXON |
Post CORONAL T1 DIXON |
Post SAGITTAL T1 DIXON |
|---|---|---|---|---|---|---|---|---|
| View Image | View Image | View Image | View Image | View Image | View Image | View Image | View Image | |
| Sequence Name | tseBR | tse | tseR | epse | tseBR | tse | tse | tse |
| Dimension | 2D | 2D | ― | ― | 2D | ― | ― | ― |
| Acceleration Mode | GRAPPA | GRAPPA | None | GRAPPA | GRAPPA | GRAPPA | GRAPPA | GRAPPA |
| Acceleration Factor PE | 2 | 2 | ― | 2 | 2 | 2 | 2 | 2 |
| AutoAlign | ― | ― | ― | Head > Brain | ― | ― | ― | ― |
Acquisition Parameters
| Scan Description | SAGITTAL T1 |
Pre AXIAL T1 |
AXIAL T2 Fat Sat DIXON |
AXIAL DWI |
CORONAL T2 |
Post AXIAL T1 DIXON |
Post CORONAL T1 DIXON |
Post SAGITTAL T1 DIXON |
|---|---|---|---|---|---|---|---|---|
| TR | 3240.0 ms | 595.0 ms | 4070.0 ms | 4900.0 ms | 3460.0 ms | 611.0 ms | 611.0 ms | 611.0 ms |
| TE | 87.00 ms | 17.00 ms | 77.00 ms | 98.0 ms | 87.00 ms | 13.00 ms | 13.00 ms | 13.00 ms |
| Flip Angle | 160 deg | 160 deg | 180 deg | ― | 122 deg | 180 deg | 180 deg | 180 deg |
| Turbo Factor | 23 | 3 | 19 | ― | 23 | 3 | 3 | 3 |
| Bandwidth | 252 Hz/Px | 200 Hz/Px | 340 Hz/Px | 1184 Hz/Px | 252 Hz/Px | 252 Hz/Px | 252 Hz/Px | 252 Hz/Px |
| Echo Spacing | 7.28 ms | 8.30 ms | 11.02 ms | ― | 7.28 ms | 13.46 ms | 13.46 ms | 13.46 ms |
| Echo Trains per Slice | 32 | 68 | 22 | ― | 32 | 72 | 72 | 72 |
| Fat-Water Contrast | Standard | Standard | Dixon | Fat Saturation | Standard | Dixon | Dixon | Dixon |
| Fat Saturation | ― | ― | Strong | Weak | ― | Strong | Strong | Strong |
| Gradient Mode | Fast | Fast | Fast | Fast | Fast | Fast | Fast | Fast |
| RF Pulse Type | Fast | Fast | Fast | Normal | Fast | Normal | Normal | Normal |
| Asymmetric Echo | ― | ― | Off | ― | ― | Off | Off | Off |
Scan Parameters
| Scan Description | SAGITTAL T1 |
Pre AXIAL T1 |
AXIAL T2 Fat Sat DIXON |
AXIAL DWI |
CORONAL T2 |
Post AXIAL T1 DIXON |
Post CORONAL T1 DIXON |
Post SAGITTAL T1 DIXON |
|---|---|---|---|---|---|---|---|---|
| Base Resolution | 320 | 320 | 320 | 128 | 320 | 320 | 320 | 320 |
| Phase Resolution | ― | 70% | 70% | 100% | ― | 70% | 70% | 70% |
| Averages | 1 | 3 | 1 | ― | 1 | 1 | 1 | 1 |
| Concatenations | 2 | 2 | 2 | 1 | 2 | 3 | 3 | 3 |
| b-value | ― | ― | ― | 0 s/mm2 1000 s/mm2 |
― | ― | ― | ― |
| FoV Read | 200 mm | 200 mm | 200 mm | 220 mm | 220 mm | 200 mm | 220 mm | 220 mm |
| FoV Phase | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| Phase Encoding Dir. | A >> P | R >> L | R >> L | A >> P | R >> L | R >> L | R >> L | A >> P |
| Phase Oversampling | 100% | 80% | 80% | 0% | 100% | 80% | 80% | 80% |
| Phase Partial Fourier | ― | Off | Off | ― | ― | Off | Off | Off |
| Flow Compensation | None | None | None | ― | None | None | None | None |
Scanning Range
| Scan Description | SAGITTAL T1 |
Pre AXIAL T1 |
AXIAL T2 Fat Sat DIXON |
AXIAL DWI |
CORONAL T2 |
Post AXIAL T1 DIXON |
Post CORONAL T1 DIXON |
Post SAGITTAL T1 DIXON |
|---|---|---|---|---|---|---|---|---|
| Elliptical Filter | Off | On | Off | Off | Off | Off | Off | Off |
| Normalize | Prescan | Prescan | Prescan | Prescan | Prescan | Prescan | Prescan | Prescan |
| Distortion Correction | 2D | 2D | 2D | Off | 2D | 2D | 2D | 2D |
| Distance Factor | 20% | 30% | 30% | 0% | 20% | 30% | 30% | 20% |
| Slice Thickness | 5.0 mm | 5.0 mm | 5.0 mm | 5.0 mm | 5.0 mm | 5.0 mm | 5.0 mm | 5.0 mm |
| Slices | 36 | 36 | 36 | 30 Slices | 36 | 36 | 36 | 36 |
| Acquisition Time | 3:35 min | 4:05 min | 6:08 min | 51 sec | 3:50 min | 4:27 min | 4:27 min | 4:27 min |