Pulmonary Artery 1.5T
GE Healthcare – MR Gadopiclenol (VUEWAY®) Protocols
Instructions And Patient Preparation
- Instructions
- • Respiratory bellows
• Optional: Reformat all Sagittal MRA into Axial and Coronal
• For poor breath holders, increase slice thickness and decrease number of slices - Common Indication
- R/O pulmonary embolism (PE)
- Position
- Supine
- Coil
- 8-32 channel Body Array, 8 channel Cardiac, GEMS Array
- Landmark
- Nipple Line
Contrast Agent Parameters
| Contrast Agents | Dose | Injection Rate | Dose Timing Method and Scan Delay | |
|---|---|---|---|---|
| Gadopiclenol (VUEWAY) | 0.05 mmol/kg up to a calculated volume of 10 mL OK to cap at 10 mL max volume for patients larger than 100 kg |
Dilute to 30 mL @ 1.5 mL/sec | Fluoro trigger to peak arterial opacification of thoracic aorta | |
| Saline Flush | 50 mL | 1.5 mL/sec | Immediately following gadolinium | |
| Comments | Expiration | Pre during Fluoro trigger Post 1 Expiration |
Post 2 LOW FLIP Expiration |
Expiration |
Imaging Parameters
| Scan Description | 3PL LOCALIZER SSFSE ARC |
SAGITTAL 3D MRA |
SAGITTAL 3D MRA LOW FLIP |
Post AXIAL T1 FAT |
|---|---|---|---|---|
| View Image | View Image | |||
| Mode | 2D | 3D | 3D | 2D |
| Pulse Sequence | SSFSE | ceMRA | ceMRA | FSPGR |
| Imaging Options | EDR, SEQ, FAST, SS |
FAST, EDR, ARC, ZIP2, ZIP512, FluoroTrig |
FAST, EDR, ARC, ZIP2, ZIP512 |
FAST, EDR, ZIP512 |
Scan Parameters
| Scan Description | 3PL LOCALIZER SSFSE ARC |
SAGITTAL 3D MRA |
SAGITTAL 3D MRA LOW FLIP |
Post AXIAL T1 FAT |
|---|---|---|---|---|
| TE | 90 | Min | Min | In Phase |
| TR | Min | Def | Def | 110 |
| Flip Angle | — | 28 | 15 | 90 |
| Bandwidth | 83 | 83 | 62 | 41 |
| SAT | — | — | — | Fat Sat |
Acquisition Parameters
| Scan Description | 3PL LOCALIZER SSFSE ARC |
SAGITTAL 3D MRA |
SAGITTAL 3D MRA LOW FLIP |
Post AXIAL T1 FAT |
|---|---|---|---|---|
| MATRIX freq | 288 | 256 | 256 | 320 |
| MATRIX phase | 160 | 192 | 192 | 192 |
| NEX | Def | 1 | 1 | 1 |
| Phase FOV | 1 | 0.8 | 0.8 | 0.8 |
| Freq Direction | Def | S/I | S/I | R/L |
| Image Enhance | — | — | — | PURE |
| Accel | Ph 2 | Ph 2, Sl 2 | Ph 2, Sl 2 | — |
| Adv CV | 0, 240, 0 | Turbo 2 Elip Cent 1 Slice Res 78% |
Turbo 2 Elip Cent 1 Slice Res 78% |
Fat Sat Eff 1 |
Scanning Range
| Scan Description | 3PL LOCALIZER SSFSE ARC |
SAGITTAL 3D MRA |
SAGITTAL 3D MRA LOW FLIP |
Post AXIAL T1 FAT |
|---|---|---|---|---|
| FOV | 40 | 36 | 36 | 36 |
| Slice Thickness | 8 | 2 | 2 | 4 |
| Spacing | 0 | 0 | 0 | 0 |
| Number of Slices | 5-8 each Plane | 70 Slices/PRN | 70 Slices/PRN | 44 Slices |
| Approx. Scan Time | 0:46-0:54 | ± 20 sec per BH | ± 20 sec per BH | 0:18 per BH |