Prostate Cancer 1.5T
Siemens Healthineers – MR Gadopiclenol (VUEWAY®) Protocols
Instructions And Patient Preparation
- Instructions
- • Have patient evacuate rectum/rectal gas prior to scan if possible
• Optional: Patient could take a Fleet enema prior to appointment
• NPO for 4 hours prior to study recommended (reduces bowel motion)
• Cover prostate and seminal vesicles
• Endo-Rectal coil not necessary for this protocol particularly with 3T, scan on 3T if possible - Common Indications
- Elevated prostate-specific antigen (PSA), palpable prostate nodule, active surveillance
- Position
- Supine; head or feet first
- Coil
- Body Array (anterior); Spine Array (posterior)
- Landmark
- Center of coil; below belly button; adjust after LOC using ISO mode imaging
Contrast Agent Parameters
| Contrast Agent | Dose | Injection Rate | Dose Timing Method and Scan Delay | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Gadopiclenol (VUEWAY) | 0.05 mmol/kg | 4 mL/sec | Perfusion: start scan, wait 9 sec, inject contrast | |||||||
| Saline Flush | 20 mL | 4 mL/sec | 9 sec injection delay | |||||||
| Comments | • Report agent administered and dose • Use minimal dose for patients with a GFR <30 mL/sec |
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Imaging Parameters
| Scan Description | 3 PLANE HASTE SCOUT | SAGITTAL T2 |
AXIAL T2 |
AXIAL DWI |
AXIAL T1 Hi Res |
CORONAL T2 |
AXIAL IN OUT |
AXIAL T1 TWIST TRA DYN Pre |
T1 TWIST Perfusion | AXIAL VIBE Post Pelvis |
|---|---|---|---|---|---|---|---|---|---|---|
| View Image | View Image | View Image | View Image | View Image | View Image | View Image | View Image | |||
| Sequence Name | h | tse | tse | epse | tse | tse | fl | fldyn | fldyn | fl |
| Dimension | 2D | 2D | 2D | — | 2D | 2D | 3D | 3D | 3D | 3D |
| Acceleration Mode | GRAPPA | GRAPPA | GRAPPA | GRAPPA | GRAPPA | GRAPPA | GRAPPA | GRAPPA | GRAPPA | CAIPIRINHA |
| Acceleration Factor PE | 2 | 2 | 2 | — | — | — | 2 | 2 | 2 | 2 |
Scan Parameters
| Scan Description | 3 PLANE HASTE SCOUT | SAGITTAL T2 |
AXIAL T2 |
AXIAL DWI |
AXIAL T1 Hi Res |
CORONAL T2 |
AXIAL IN OUT |
AXIAL T1 TWIST TRA DYN Pre |
T1 TWIST Perfusion | AXIAL VIBE Post Pelvis |
|---|---|---|---|---|---|---|---|---|---|---|
| TR | 1000.0 ms | 5000.0 ms | 4810.0 ms | 8900.0 ms | 925.0 ms | 3500.0 ms | 7.0 ms | 4.97 ms | 4.97 ms | 3.6 ms |
| TE | 93.0 ms | 114.0 ms | 115.0 ms | 77.0 ms | 12.0 ms | 115.0 ms | 1: 2.38 ms 2: 4.76 ms |
1.99 ms | 1.99 ms | 1.85 ms |
| Flip Angle | 105 deg | 150 deg | 140 deg | — | 160 deg | 131 deg | 10 deg | 12 deg | 12 deg | 10 deg |
| Turbo Factor | 256 | 25 | 20 | — | 3 | 23 | — | — | — | — |
| Bandwidth | 698 Hz/Px | 170 Hz/Px | 164 Hz/Px | 1516 Hz/Px | 170 Hz/Px | 200 Hz/Px | 490 Hz/Px | 260 Hz/Px | 260 Hz/Px | 650 Hz/Px |
| Fat-Water Contrast | Standard | Standard | Standard | Fat Saturation | Standard | Standard | Standard | Standard | Standard | Fast Fat Saturation |
| Fat Saturation | — | — | — | Strong | — | — | — | — | — | — |
| Gradient Mode | Fast | Fast | Fast | Fast | Normal | Fast | Fast | Fast | Fast | Fast |
| RF Pulse Type | Normal | Low SAR | Normal | Normal | Low SAR | Normal | Fast | Normal | Normal | Fast |
| Asymmetric Echo | — | — | — | — | — | — | Off | Weak | Weak | Off |
Acquisition Parameters
| Scan Description | 3 PLANE HASTE SCOUT | SAGITTAL T2 |
AXIAL T2 |
AXIAL DWI |
AXIAL T1 Hi Res |
CORONAL T2 |
AXIAL IN OUT |
AXIAL T1 TWIST TRA DYN Pre |
T1 TWIST Perfusion | AXIAL VIBE Post Pelvis |
|---|---|---|---|---|---|---|---|---|---|---|
| Base Resolution | 256 | 320 | 320 | 100 | 192 | 320 | 320 | 192 | 192 | 320 |
| Phase Resolution | 100% | 80% | 100% | 100% | 75% | 80% | 75% | 80% | 80% | 75% |
| Slice Resolution | — | — | — | — | — | — | 50% | 75% | 75% | 61% |
| Averages | 1 | 2 | 2 | 1, 4, 5 | 1 | 2 | 1 | — | — | 1 |
| Concatenations | 1 | 2 | 2 | 1 | 2 | 2 | 1 | — | — | 1 |
| b-value | — | — | — | 0 s/mm2 50 s/mm2 1000 s/mm2 1600 s/mm2 |
— | — | — | — | — | — |
| FoV Read | 380 mm | 180 mm | 180 mm | 240 mm | 180 mm | 180 mm | 380 mm | 240 mm | 240 mm | 380 mm |
| FoV Phase | 100% | 100% | 100% | 100% | 100% | 113% | 78% | 100% | 100% | 81% |
| Phase Encoding Dir. | R >> L | H >> F | R >> L | A >> P | R >> L | F >> H | A >> P | R >> L | R >> L | A >> P |
| Phase Oversampling | 50% | 100% | 100% | 0% | 100% | 100% | 0% | 50% | 50% | 20% |
| Slice Oversampling | — | — | — | — | — | — | 13% | 33% | 33% | 27% |
| Phase Partial Fourier | 5/8 | Off | Off | Off | — | Off | 7/8 | Off | Off | Off |
| Slice Partial Fourier | — | — | — | — | — | — | 6/8 | Off | Off | 6/8 |
| Flow Compensation | None | None | None | — | None | None | — | — | — | — |
Scanning Range
| Scan Description | 3 PLANE HASTE SCOUT | SAGITTAL T2 |
AXIAL T2 |
AXIAL DWI |
AXIAL T1 Hi Res |
CORONAL T2 |
AXIAL IN OUT |
AXIAL T1 TWIST TRA DYN Pre |
T1 TWIST Perfusion | AXIAL VIBE Post Pelvis |
|---|---|---|---|---|---|---|---|---|---|---|
| Elliptical Filter | Off | Off | Off | Off | Off | Off | Off | Off | Off | Off |
| Normalize | Prescan | Prescan | Prescan | Off | Prescan | Prescan | Prescan | Off | Off | Prescan |
| Raw Filter | Off | Off | Off | On | Off | Off | Off | Off | Off | Off |
| Distortion Correction | 2D | 2D | 2D | 2D | 2D | 2D | 2D | 2D | 2D | 2D |
| Slice Thickness | 6.0 mm | 3.0 mm | 3.0 mm | 3.0 mm | 3.0 mm | 3.0 mm | 3.0 mm | 3.0 mm | 3.0 mm | 3.0 mm |
| Distance Factor | 150% | 0% | 0% | 0% | 0% | 0% | 20% | — | — | 20% |
| Slices | Slices 13 | Slices 30 | Slices 40 | Slices 40 | Slices 39 | Slices 27 | Slices per Slab 64 |
Slices per Slab 24 |
Slices per Slab 24 |
Slices per Slab 88 |
| Time of Acquisition | 34 sec | 3:52 min | 5:19 min | 6:24 min | 1:40 min | 3:11 min | 21 sec | 31 sec | 4:38 min | 15 sec |