Instructions And Patient Preparation
- Instructions
- • Small FOV: Pelvic side wall to acetabulum; Oblique axis refers to the prostate
• For metal artifacts consider reduced FOV multishot DWI, changing readout direction
• Antiperistalsis: Immediately before motion sensitive pulse sequences 0.6-1 mg glucagon IV; or 25-30 min before motion sensitive pulse sequences glucagon 0.6-1 mg IM or anticholinergic medication such as 0.25 mg hyoscyamine sulfate sublingual or hyoscine butylbromide (Buscopan) 20 mg or higher dose IM (currently not available in the US) - Common Indications
- Suspected or known prostate cancer
- Position
- Supine
- Coil
- 32 channel Torso, GEMS Body array, or Air coil
- Landmark
- Iliac Crest
Contrast Agent Parameters
| Contrast Agent | Dose | Injection Rate | Dose Timing Method and Scan Delay | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gadopiclenol (VUEWAY) | 0.05 mmol/kg up to a calculated volume of 10 mL | 2 mL/sec | Scan Mask, scan will pause, inject and scan at the same time | |||||||||
| Saline Flush | 50 mL | 2 mL/sec | Immediately following gadolinium | |||||||||
| Comments | — | — | — | Consider DWI FOCUS if available |
— | Consider DWI FOCUS if available |
Pelvic Survey 4 cm above bifurcation through symphysis |
Pre breath held | Dynamic with <15 sec temp resolution for 2 min+ |
Postcontrast Pelvis Survey 4 cm above bifurcation through symphysis breath held |
Optional: Dynamic SPGR if DISCO isn’t available |
For radiation planning: consider 3D T2, consider using HyperSense for 3D T2 |
Imaging Parameters
| Scan Description | 3PL LOCALIZER SSFSE |
SAGITTAL T2 No Fat Sat |
OBLIQUE AXIAL T2 |
Optional: OBLIQUE AXIAL DWI |
OBLIQUE CORONAL T2 |
OBLIQUE AXIAL DWI Hi B Val |
Optional: AXIAL T2 Fat Sat |
AXIAL T1 LAVA-Flex |
AXIAL T1 DISCO |
AXIAL T1 LAVA-Flex |
Optional: AXIAL SPGR Special Fat |
AXIAL T2 CUBE |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| View Image | View Image | View Image | View Image | View Image | View Image | |||||||
| Mode | 2D | 2D | 2D | 2D | 2D | 2D | 2D | 3D | 3D | 3D | 3D | 3D |
| Pulse Sequence | SSFSE | FRFSE-XL | FRFSE-XL | EPI-Diff | FRFSE-XL | EPI-Diff | FRFSE-XL | 3D LAVA-Flex | 3D DISCO | 3D LAVA-Flex | 3D FAST TOF SPGR | CUBE T2 |
| Imaging Options | EDR, SEQ, ARC, SS, FAST |
FC, TRf, FAST, FR |
FC, TRf, FAST, FR |
EPI, DIFF, ASSET, 1 Shot |
FC, NPW, TRf, FAST, FR |
EPI, DIFF, ASSET, 1 Shot |
FC, TRf, FAST, FR |
EDR, ZIP512, ZIP2, ARC, FAST | EDR, ZIP512, ZIP2, ARC, Mph, FAST | EDR, ZIP512, ZIP2, ARC, FAST |
ZIP512, ZIP2, FAST |
EDR, FAST, FR, ZIP512, ZIP2, ARC |
Scan Parameters
| Scan Description | 3PL LOCALIZER SSFSE |
SAGITTAL T2 No Fat Sat |
OBLIQUE AXIAL T2 |
Optional: OBLIQUE AXIAL DWI |
OBLIQUE CORONAL T2 |
OBLIQUE AXIAL DWI Hi B Val |
Optional: AXIAL T2 Fat Sat |
AXIAL T1 LAVA-Flex |
AXIAL T1 DISCO |
AXIAL T1 LAVA-Flex |
Optional: AXIAL SPGR Special Fat |
AXIAL T2 CUBE |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TE | 90 | 102 | 102 | Min | 102 | Min | 90 | Min | Min | Min | Min Full | Def |
| TR | Min | 3400 | 3500 | 6000 | 3500 | 6000 | 3500 | Def | Def | Def | Def | 2500 |
| Flip Angle | — | — | — | — | — | — | — | 15 | 15 | 15 | 12 | — |
| ETL | — | 21 | 21 | — | 21 | — | 21 | — | — | — | InvPrep TI Auto | 120 |
| Bandwidth | 83 | 62 | 62 | — | 62 | — | 41 | 143 | 83 | 90 | 62 | 62 |
| SAT | — | — | — | — | — | — | Fat Sat | — | — | — | Special Fat Sat | — |
Acquisition Parameters
| Scan Description | 3PL LOCALIZER SSFSE |
SAGITTAL T2 No Fat Sat |
OBLIQUE AXIAL T2 |
Optional: OBLIQUE AXIAL DWI |
OBLIQUE CORONAL T2 |
OBLIQUE AXIAL DWI Hi B Val |
Optional: AXIAL T2 Fat Sat |
AXIAL T1 LAVA-Flex |
AXIAL T1 DISCO |
AXIAL T1 LAVA-Flex |
Optional: AXIAL SPGR Special Fat |
AXIAL T2 CUBE |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MATRIX freq | 288 | 320 | 320 | 192 | 320 | 192 | 320 | 200 | 200 | 264 | 256 | 256 |
| MATRIX phase | 192 | 224 | 256 | 192 | 224 | 192 | 192 | 192 | 160 | 224 | 160 | 256 |
| NEX | 1 | 2 | 2 | — | 2 | — | 2 | 1 | 1 | 1 | 1 | 1 |
| Phase FOV | 1 | 0.9 | 0.9 | 1 | 1 | 1 | 0.8 | 1 | 1 | 1 | 0.8 | 1 |
| Freq Direction | — | S/I | R/L | R/L | S/I | R/L | R/L | R/L | R/L | R/L | R/L | R/L |
| Accel | Ph 2 | — | — | — | — | — | — | Ph 2, Sl 2 | Ph 1.5, Sl 1.5 | Ph 2, Sl 2 | — | Ph 2, Sl 2 |
| User CV | 1, 240, 1 | — | — | Ramp samp 1 Flair Inv 0 Grad opt 1 |
— | Ramp samp 1 Flair Inv 0 Grad opt 1 |
Fat Sat eff 1 | Min ph os 24 Min sls os 24 Turbo arc 1 |
Turbo Mode | Min ph os 24 Min sls os 24 Turbo arc 1 |
Turbo 2 Centric 1 |
— |
| Other | — | — | — | DWI b val 0-50 6 nex Diff Dir TETRA b val 600-800 nex 6 Opt TE On |
— | DWI b val 0-50 6 nex Diff Dir TETRA b val 1200-1500 nex 6 Opt TE On |
— | — | 25 Phases | — | 9 Phases, Delay Min Auto Subtract (1 Ph) Collapse off proj 0 |
— |
Scanning Range
| Scan Description | 3PL LOCALIZER SSFSE |
SAGITTAL T2 No Fat Sat |
OBLIQUE AXIAL T2 |
Optional: OBLIQUE AXIAL DWI |
OBLIQUE CORONAL T2 |
OBLIQUE AXIAL DWI Hi B Val |
Optional: AXIAL T2 Fat Sat |
AXIAL T1 LAVA-Flex |
AXIAL T1 DISCO |
AXIAL T1 LAVA-Flex |
Optional: AXIAL SPGR Special Fat |
AXIAL T2 CUBE |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| FOV | 48 | 26 x 21 | 26 x 21 | 30 | 26 x 26 | 30 | 34 x 27 | 26 x 26 | 26 x 26 | 38 x 38 | 28 x 22 | 26 |
| Slice Thickness | 8 | 2.4 | 2.4 | 4 | 2.4 | 4 | 5 | 2.6 | 2.6 | 3.6 | 3 | 1.8 |
| Spacing | 0 | 0.2 | 0.2 | 0.5 | 0.2 | 0.5 | 0 | 0 | 0 | 0 | 0 | 0 |
| Number of Slices | 25 | PRN | PRN | 30 Slices | PRN | 30 Slices | PRN | 44 Locs PRN | 44 Locs PRN | 100 Locs PRN | 38 Locs | — |
| Approx. Scan Time | 0:34 | 5:00 ± | 5:00 ± | 4:00 | 5:00 ± | 4:00 | 5:00 ± | 0:23 ± | 3:30 | 0:23 ± | 4:00 | 5:00 ± |
