Cerebrospinal Fluid Flow 1.5T
GE Healthcare – MR Gadopiclenol (VUEWAY®) Protocols
Instructions And Patient Preparation
- Instructions
- • Cine PC (phase-contrast) are cardiac or peripheral gated
• Contrast is not usually used for this study but the 3D postcontrast images can be useful to look at the anatomy - Indications
- To be used for CSF Flow studies for Aqueduct, 3rd Ventricle evaluation and Chiari malformations
- Position
- Head first, supine
- Coil
- Head, HNU (Head 24 selected if possible)
- Landmark
- Nasion
- Special Instructions
-
— Aqueduct & 3rd Ventricle/ Foramen
SAGITTALChiari-Center Foramen Aqueduct-Center
3rd VentricleChiari-Center Foramen Aqueduct-Center
3rd VentricleChiari-Center Foramen Aqueduct-Center
3rd Ventricle
Imaging Parameters
| Scan Description | SAGITTAL 3D T2 CUBE |
Head: Aqueduct & 3rd Ventricle: SAGITTAL T2 CUBE Non-gated |
Head: Aqueduct AXIAL CINE PC Flow Directions |
Head: Aqueduct AXIAL FAST PC Flow Analysis |
Head: Midline Aqueduct SAGITTAL CINE PC Flow Directions |
|---|---|---|---|---|---|
| View Image | |||||
| Primary Sequence | Yes | Yes | Yes | Yes | Yes |
| Mode | 3D | 3D | CINE | 2D | CINE |
| Pulse Sequence | CUBE | CUBE T2 | VASC PC | VASC PC | VASC PC |
| Imaging Options | EDR, FAST, FR, ZIP2, ARC |
EDR, FAST, FR, ZIP2, ARC |
FC, SEQ | FC, SEQ, GATE, FR | FC, SEQ |
Scan Parameters
| Scan Description | SAGITTAL 3D T2 CUBE |
Head: Aqueduct & 3rd Ventricle: SAGITTAL T2 CUBE Non-gated |
Head: Aqueduct AXIAL CINE PC Flow Directions |
Head: Aqueduct AXIAL FAST PC Flow Analysis |
Head: Midline Aqueduct SAGITTAL CINE PC Flow Directions |
|---|---|---|---|---|---|
| TE | 90 | 90 | Def | Min | Def |
| TR | 2400 | 2500 | 30 | Def | 30 |
| Flip Angle | ― | ― | 15 | 15 | ― |
| ETL | 120 | 100 | ― | ― | ― |
| Bandwidth | 41 | 62 | 15 | 31 | 20 |
| Sat | ― | ― | 14 Phases | ― | ― |
Acquisition Parameters
| Scan Description | SAGITTAL 3D T2 CUBE |
Head: Aqueduct & 3rd Ventricle: SAGITTAL T2 CUBE Non-gated |
Head: Aqueduct AXIAL CINE PC Flow Directions |
Head: Aqueduct AXIAL FAST PC Flow Analysis |
Head: Midline Aqueduct SAGITTAL CINE PC Flow Directions |
|---|---|---|---|---|---|
| MATRIX freq | 288 | 256 | 256 | 256 | 256 |
| MATRIX phase | 288 | 256 | 192 | 192 | 192 |
| NEX | 1 | 1 | 1 | 1 | 1 |
| Phase FOV | 0.9 | 0.9 | ― | ― | ― |
| FC Direction | S/I | ― | Slice | Slice | Slice |
| User CV | ACC=2 OPT HS 1.2 |
― | Venc 20 Fl Anlys On |
Venc 20 Fl Anlys On VPS 4 Trig delay-Min |
Venc 10 Fl Anlys On Phase-14 Loc/acq-1 |
Scanning Range
| Scan Description | SAGITTAL 3D T2 CUBE |
Head: Aqueduct & 3rd Ventricle: SAGITTAL T2 CUBE Non-gated |
Head: Aqueduct AXIAL CINE PC Flow Directions |
Head: Aqueduct AXIAL FAST PC Flow Analysis |
Head: Midline Aqueduct SAGITTAL CINE PC Flow Directions |
|---|---|---|---|---|---|
| FOV | 25 | 25 | 24 | 24 | 24 |
| Slice Thickness | 1.2 | 1.2 | 10 mm-1 Slice | 10 mm-1 Slice | 10 mm-1 Slice |
| Spacing | ― | 0 | 0 | 0 | 0 |
| Vascular card instructions | 112 | Phase 2 Slice 2 |
Phase=14 I locRecon Phase Dir and Magnitude |
Recon Phase Dir -#Phase Recon-14 |
Recon Phase Dir |
| Scan Time | 3-5 min | 3-5 min | 2-4 min | 4-5 min | 3-5 min |
| Total Scan Time Head: Aqueduct & 3rd Ventricle | 14-23 min |