Instructions And Patient Preparation
- Instructions
- Respiratory bellows and peripheral gating optional: Reformat all Sagittal MRA into Axial and Coronal planes
- Common Indications
- Aortic aneurysm, dissection, coarctation
- Position
- Supine
- Coil
- 32 channel Torso, GEMS Body Array, or Air Coil
- 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 | Breathing | Expiration | Optional: Vasculitis Quiet breathing |
+C Pre during fluoro trigger Post 1 Expiration |
+C Post 2 LOW FLIP Expiration |
Expiration | Expiration |
Imaging Parameters
| Scan Description | 3PL LOCALIZER SSFSE ARC |
AXIAL SSFP Non-Gated |
AXIAL RT T2 Fat Sat |
SAGITTAL 3D MRA |
SAGITTAL 3D MRA LOW FLIP |
CORONAL T1 LAVA-Flex |
AXIAL T1 LAVA-Flex |
|---|---|---|---|---|---|---|---|
| View Image | View Image | View Image | |||||
| Mode | 2D | 2D | 2D | 3D | 3D | 3D | 3D |
| Pulse Sequence | SSFSE | FIESTA | FRFSE-XL | ceMRA-XV | ceMRA-XV | LAVA-Flex | LAVA-Flex |
| Imaging Options | EDR, SEQ, ARC, FAST, SS |
SEQ, FAST, ASSET |
TRf, FAST, RespTrig |
FAST, EDR, ARC, ZIP2, ZIP512, FluoroTrig |
FAST, EDR, ARC, ZIP2, ZIP512 |
EDR, FAST, ZIP2, ARC |
EDR, FAST, ZIP2, ARC |
Scan Parameters
| Scan Description | 3PL LOCALIZER SSFSE ARC |
AXIAL SSFP Non-Gated |
AXIAL RT T2 Fat Sat |
SAGITTAL 3D MRA |
SAGITTAL 3D MRA LOW FLIP |
CORONAL T1 LAVA-Flex |
AXIAL T1 LAVA-Flex |
|---|---|---|---|---|---|---|---|
| TE | 90 | Min | 90 | Min | Min | Min | Min |
| TR | Min | Def | Def | Def | Def | Def | Def |
| Flip Angle | — | 60 | — | 28 | 15 | 15 | 15 |
| ETL | — | — | 16 | — | — | — | — |
| Bandwidth | 83 | 125 | 62 | 83 | 62 | 142 | 142 |
| SAT | — | — | Fat Sat | — | — | — | — |
Acquisition Parameters
| Scan Description | 3PL LOCALIZER SSFSE ARC |
AXIAL SSFP Non-Gated |
AXIAL RT T2 Fat Sat |
SAGITTAL 3D MRA |
SAGITTAL 3D MRA LOW FLIP |
CORONAL T1 LAVA-Flex |
AXIAL T1 LAVA-Flex |
|---|---|---|---|---|---|---|---|
| MATRIX freq | 288 | 256 | 320 | 320 | 320 | 288 | 288 |
| MATRIX phase | 160 | 192 | 224 | 192 | 224 | 224 | 224 |
| NEX | Def | 1 | 2 | 1 | 1 | 1 | 1 |
| Phase FOV | 1 | 0.9 | 0.8 | 0.8 | 0.8 | 0.9 | 0.8 |
| Freq Direction | Def | R/L | R/L | S/I | S/I | S/I | R/L |
| Accel | Ph 2 | Ph 2 | — | Ph 2, Sl 2 | Ph 2, Sl 2 | Ph 2, Sl 2 | Ph 2, Sl 2 |
| Adv CV | 0, 240, 0 | — | Blur Can 1 Fat Eff 1 EnFnL Sup 0 |
Turbo 2 Elip Cent 1 Slice Res 78% |
Turbo Elip Cent Slice Res 78% |
CV6 1 CV30 1 CV36 70 |
CV6 1 CV30 1 CV36 70 |
Scanning Range
| Scan Description | 3PL LOCALIZER SSFSE ARC |
AXIAL SSFP Non-Gated |
AXIAL RT T2 Fat Sat |
SAGITTAL 3D MRA |
SAGITTAL 3D MRA LOW FLIP |
CORONAL T1 LAVA-Flex |
AXIAL T1 LAVA-Flex |
|---|---|---|---|---|---|---|---|
| FOV | 40 | 36 | 36 | 36-40 | 36-40 | 38 | 36 |
| Slice Thickness | 8 | 6 | 5 | 2 | 2 | 2 | 3 |
| Spacing | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Number of Slices | 5-8 each Plane | 40 Slices | 40-50 Slices | 70 Slices PRN | 70 Slices PRN | 140 Locs | 128 Locs |
| Approx Scan Time | 0:46-0:54 | ± 16 sec per BH | ± 5:00 | ± 20 sec per BH | ± 20 sec per BH | 0:24 | 0:24 |
