ARDL (AIR Recon Deep Learning™) MRA 1.5T Optional Sequences
GE Healthcare – MR Gadopiclenol (VUEWAY®) Protocols
Instructions And Patient Preparation
- ARDL
- ARDL is available on recent upgrades to GE scanners.
ARDL is a denoising technique. - Notes
- Like any protocol update, each radiology department must test any change to protocol and get chief radiologist approval prior to implementing.
Recent upgrades to GE scanners removed the imaging option “No Phase Wrap (NPW)” and now has a “NPW Factor” that can be reduced or increased to prevent wrap.
Contrast Agent Parameters
| Contrast Agents | Dose | ||||||
|---|---|---|---|---|---|---|---|
| Gadopiclenol (VUEWAY) | 0.075 mmol/kg up to a calculated volume of 10 mL | ||||||
| Saline Flush | 50 mL | ||||||
| Comments | 10-45 min after injection. Delayed enhancement Short Axis and Long Axis views |
||||||
Imaging Parameters
| Scan Description | OBLIQUE SSh Phase Sensitive Viability |
OBLIQUE Phase Sensitive Viability |
OBLIQUE Double IR T1 Gated |
OBLIQUE Double IR T2 Fat |
AXIAL RT T2 Vasculitis |
SONIC DL 1RR (Short Axis or Long Axis Cardiac scans) |
SONIC DL 6RR (Short Axis or Long Axis Cardiac scans) |
|---|---|---|---|---|---|---|---|
| View Image | View Image | ||||||
| Mode | 2D | 2D | 2D | 2D | 2D | 2D | 2D |
| Pulse Sequence | FIESTA | FAST GRE | FSE-XL | FSE-XL | FRFSE-XL | FIESTA | FIESTA |
| Imaging Options | Card Gate, SEQ, EDR, FAST, PS, ARC, IrP |
Card Gate, EDR, FAST, PS, ARC, IrP | Card Gate, SEQ, EDR, FAST, ZIP512, BSP, ARC |
Card Gate, SEQ, BSP, FAST |
TRf, FAST, ARC, EDR, RespTrig |
Card Gate, SEQ, EDR, FAST, SqP, ZIP512, Sonic DL |
Card Gate, SEQ, EDR, FAST, SqP, ZIP512, Sonic DL |
Scan Parameters
| Scan Description | OBLIQUE SSh Phase Sensitive Viability |
OBLIQUE Phase Sensitive Viability |
OBLIQUE Double IR T1 Gated |
OBLIQUE Double IR T2 Fat |
AXIAL RT T2 Chest |
SONIC DL 1RR (Short Axis or Long Axis Cardiac scans) |
SONIC DL 6RR (Short Axis or Long Axis Cardiac scans) |
|---|---|---|---|---|---|---|---|
| TE | Min-Full | Min | 20 | 102 | 90 | Min-Full | Min-Full |
| TR | Def | Def (6.1) | — | Def | Def | Def | Def |
| TI | TI 250 – 320 PRN | TI 250 – 320 PRN | BSP TI Auto (425) | BSP TI Auto Inv TI Auto |
— | — | — |
| Flip Angle | 20 | 20 | 155 | 155 | 16 | 55 | 55 |
| ETL | — | — | 12 | 32 | 50 | — | — |
| ARDL | Medium | Medium | Medium | Medium | Medium | Sonic DL | Sonic DL |
| Bandwidth | 125 | 50 | 62 | 62 | Fat Sat | 100 | 100 |
Acquisition Parameters
| Scan Description | OBLIQUE SSh Phase Sensitive Viability |
OBLIQUE Phase Sensitive Viability |
OBLIQUE Double IR T1 Gated |
OBLIQUE Double IR T2 Fat |
AXIAL RT T2 Chest |
SONIC DL 1RR (Short Axis or Long Axis Cardiac scans) |
SONIC DL 6RR (Short Axis or Long Axis Cardiac scans) |
|---|---|---|---|---|---|---|---|
| MATRIX freq | 192 | 224 | 256 | 256 | 320 | 180 | 320 |
| MATRIX phase | 180 | 160 | 224 | 192 | 224 | 160 | 224 |
| NEX | 1 | 1 | 1 | 1 | 2 | 1 | 1 |
| Phase FOV | 1 | 1 | 1 | 1 | 0.8 | 1 | 1 |
| Freq Direction | — | — | — | — | R/L | — | — |
| Accel | Ph 3 | PH 1 | 2 | — | 2 | — | — |
| Adv CV | IR Prep Pulse 1 Enhanced |
IR Prep Pulse 1 Enhanced |
CV14 1.25 CV19 1 |
CV14 3.33 CV19 1 |
Fat Eff 1 EnFnL Sup 0 |
CV0 1 | CV0 1 |
| Cardiac | #RR 2 Trigg Wind 10 Trigg Delay Rec |
#RR 2 Trigg Wind 10 Trigg Delay Rec |
#RR 2 Trigg Wind 10 Trigg Delay Min VPS 8 |
#RR 2 Trigg Wind 10 Trigg Delay Min VPS 8 |
— | Trig Type 5 VPS 14 Acq Ph 40 |
Trig Type 5 VPS 9 #Acq Ph 28 |
Scanning Range
| Scan Description | OBLIQUE SSh Phase Sensitive Viability |
OBLIQUE Phase Sensitive Viability |
OBLIQUE Double IR T1 Gated |
OBLIQUE Double IR T2 Fat |
AXIAL RT T2 Chest |
SONIC DL 1RR (Short Axis or Long Axis Cardiac scans) |
SONIC DL 6RR (Short Axis or Long Axis Cardiac scans) |
|---|---|---|---|---|---|---|---|
| FOV | 40 | 40 | 36 | 36 | 36 | 35 | 35 |
| Slice Thickness | 8 | 8 | 7 | 7 | 5 | 8 | 8 |
| Spacing | 0 | 2 | 1 | 1 | 1 | 2 | 2 |
| Number of Slices | 15-20 | 15-20 | Variable | Variable | 40 Slices | Variable | Variable |
| Approx. Scan Time | ± 20-35 sec for full SA Stack gating dependent |
± 8-15 sec per BH gating dependent |
± 8-15 sec per BH gating dependent |
± 8-15 sec per BH gating dependent |
± 2:30 | 2 sec per Slice | 7 sec per Slice |