Instructions And Patient Preparation
- Instructions
- • Reformat Sagittal T1 CUBE in Axial and Coronal planes. If CUBE is not available run Axial and Coronal T1 weighted sequences with and without contrast (+/-Fat Sat)
• Axial T2 Fat Saturation or STIR used to assess optic nerve
• Axial CUBE or FIESTA images can be used to image the orbit and vessels
• This may be a standalone exam or an addition to a brain MRI
• Contrast is used for almost all examinations - Position
- Supine, head first
- Coil
- 8 channel Head or GEM HNU
- Landmark
- Glabella/Nasion
Contrast Agent Parameters
| Contrast Agent | Dose | Injection Rate | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gadopiclenol (VUEWAY) | 0.05 mmol/kg up to a calculated volume of 10 mL | Hand injection 1 mL/sec | |||||||||||
| Saline Flush | 10-20 mL | Hand Flush | |||||||||||
| Comments | • Report agent administered and dose • Use minimal dose for patients with a GFR <60 mL/sec |
||||||||||||
Imaging Parameters
| Scan Description | 3PL LOCALIZER |
SAGITTAL 3D T1 CUBE |
Optional: AXIAL T1 |
Optional: CORONAL T1 |
AXIAL T2 CUBE FOCUS |
AXIAL FIESTA |
CORONAL T2 FSE |
Post AXIAL T1 FS |
Post CORONAL T1 FS |
Optional: AXIAL DWI-PROPELLER |
Optional: CORONAL STIR |
Optional: CORONAL T2 IDEAL (if Flex not available) |
Optional: CORONAL T1 IDEAL (if Flex not available) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| View Image | View Image | View Image | |||||||||||
| Primary Sequence | Yes | Yes | Yes | Yes | Optional | Yes | Yes | Yes | Yes | No | No | No | No |
| Mode | 2D | 3D | 2D | 2D | 3D | 3D | 2D | 2D | 2D | 2D | 2D | 2D | 2D |
| Pulse Sequence | SSFSE | CUBE | FSE-XL | FSE-XL | CUBE-T2 | FIESTA-C | FSE-XL | FSE-XL | FSE-XL | PROPELLER | IR | FSE-XL | FSE-XL |
| Imaging Options | SEQ, EDR, FAST, SS, ARC, TRF |
EDR, ZIP2, ZIP512, FR, ARC |
TRF, FC, NPW, TRF, FAST |
TRF, FC, NPW, TRF, FAST |
FC, EDR, FAST, ZIP512, ZIP2, FR, ARC, HS, Excitation=focus |
NPW, FAST, ZIP2, ZIP512 | FC, TRF, NPW | Fat Sat Post, NPW, TRF |
TRF, FC, NPW, TRF, FAST |
PROPELLER, ARC (DWDuo if available) | FC, TRF, NPW | NPW, FAST, FC, IDEAL, ARC |
NPW, FAST, FC, IDEAL, ARC |
Scan Parameters
| Scan Description | 3PL LOCALIZER |
SAGITTAL 3D T1 CUBE |
Optional: AXIAL T1 |
Optional: CORONAL T1 |
AXIAL T2 CUBE FOCUS |
AXIAL FIESTA |
CORONAL T2 FSE |
Post AXIAL T1 FS |
Post CORONAL T1 FS |
Optional: AXIAL DWI-PROPELLER |
Optional: CORONAL STIR |
Optional: CORONAL T2 IDEAL (if Flex not available) |
Optional: CORONAL T1 IDEAL (if Flex not available) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TE | 80 | Min | Min-Full | Min-Full | 220 | Min | 85 | Min-Full | Min-Full | ― | 40 | 85 | Min-Full |
| TR | 1000 | 550 | 500-700 | 500-700 | 2000 | ― | 4000 | 500-700 | 500-700 | Auto | 4000 | 4200 | 550 |
| TI | ― | ― | ― | ― | ― | ― | ― | ― | ― | ― | 190 | ― | ― |
| Flip Angle | ― | ― | Auto | Auto | Auto | 55 | Auto | Auto | Auto | ― | Auto | Auto | Auto |
| ETL | ― | 20 | 3 | 3 | 130 | ― | 13 | 3 | 3 | 20 | 8 | 21 | 4 |
| Bandwidth | 83 | 62 | 31 | 31 | 62 | 36 | 31 | 31 | 31 | 41 | 20 | 31 | 22 |
| Sat | ― | ― | ― | ― | ― | ― | Fat (Flex if available) | Fat (Flex if available) | Fat (Flex if available) | Fat | ― | ― | ― |
Acquisition Parameters
| Scan Description | 3PL LOCALIZER |
SAGITTAL 3D T1 CUBE |
Optional: AXIAL T1 |
Optional: CORONAL T1 |
AXIAL T2 CUBE FOCUS |
AXIAL FIESTA |
CORONAL T2 FSE |
Post AXIAL T1 FS |
Post CORONAL T1 FS |
Optional: AXIAL DWI-PROPELLER |
Optional: CORONAL STIR |
Optional: CORONAL T2 IDEAL (if Flex not available) |
Optional: CORONAL T1 IDEAL (if Flex not available) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MATRIX freq | 256 | 256 | 320 | 320 | 260 | 256 | 384 | 320 | 256 | 112 | 256 | 320 | 320 |
| MATRIX phase | 192 | 256 | 224 | 224 | 260 | 256 | 256 | 224 | 224 | 112 | 256 | 192 | 192 |
| NEX | 1 | 1 | 2 | 2 | 2 | 1 | 2 | 2 | 2 | 2.5 | 2 | 2 | 2 |
| Phase FOV | 1 | ― | 1 | 1 | 0.8 | ― | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Freq Direction | Unswap | S/I | A/P | S/I | A/P | A/P | S/I | A/P | S/I | R/L | S/I | 0.8 | 0.8 |
| Image Enhance | ― | PURE | PURE | PURE | PURE | PURE | PURE | PURE | PURE | PURE | PURE | PURE | PURE |
| FC Direction | ― | ― | Slice | Freq | Slice | ― | Slice or Freq | Slice | Freq | ― | Freq | Freq | Freq |
| User CV | ― | ACC=2 | ― | ― | CUBE-2 SAR-1 Apodization-lvl-1 |
― | ― | ― | ― | TR Auto B-Val 1000 ADC On Comb On DIFF Prep On ACC=2 |
― | ACC=2 | ACC=2 |
Scanning Range
| Scan Description | 3PL LOCALIZER |
SAGITTAL 3D T1 CUBE |
Optional: AXIAL T1 |
Optional: CORONAL T1 |
AXIAL T2 CUBE FOCUS |
AXIAL FIESTA |
CORONAL T2 FSE |
Post AXIAL T1 FS |
Post CORONAL T1 FS |
Optional: AXIAL DWI-PROPELLER |
Optional: CORONAL STIR |
Optional: CORONAL T2 IDEAL (if Flex not available) |
Optional: CORONAL T1 IDEAL (if Flex not available) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| FOV | 30 | 24 | 16 | 16 | 16 | 16 | 16 | 16 | 18 | 24 | 16 | 26 | 26 |
| Slice Thickness | 7 | 1.2 | 3 | 3 | 1 | 1.2 | 3 | 3 | 3 | 4 | 3 | 3 | 3 |
| Spacing | 5 | ― | 0.2 | 0.2 | ― | ― | 0.2 | 0.2 | 0.2 | 1 | 0.2 | 0.5 | 0.5 |
| Number of Slices | 7-Ax/Sag/Cor | 160 | 12-15 | 15-18 | 76 | 1 Slab-40 | 12-18 | 12-15 | 15-18 | 24-26 | 12-18 | 20 | 20 |
| Scan Time | 0:18 sec | 3-5 min | ~3.5 min | ~3.5 min | ~4-5 min | 4-5 min | ~3 min | ~3.5 min | ~3.5 min | ~2-3 min | ~3.5 min | 4 min | 4 min |
