Silicone Sequences 3T
Philips Healthcare – MR Gadopiclenol (VUEWAY®) Protocols
Instructions And Patient Preparation
- Instructions
- • Ensure to increase the FOV as needed to include all breast tissue and axillae; use same FOV for all sequences
• Ensure to pull abdominal tissue down to prevent a fold into the coil and FOV
• Ensure to pull medial breast tissue into coil
• Ensure axilla tissue is in the coil and not above the side panel - Common Indications
- Diagnostic and screening
- Position
- Prone
- Coil
- Bilateral Breast Coil
- Landmark
- Mid-breast, Nipples
Contrast Agent Parameters
| Contrast Agent | Dose | Injection Rate | ||||
|---|---|---|---|---|---|---|
| Gadopiclenol (VUEWAY) | 0.05 mmol/kg up to a calculated volume of 10 mL (If adding Routine Bilateral) | 2 mL/sec | ||||
| Saline Flush | 20 mL | 2 mL/sec | ||||
| Comments | The Coronal T2 FLAIR and T2 sequences should be acquired perpendicular to the plane of the hippocampus | |||||
Info Page
| Scan Description | SURVEY | AXIAL T1 |
AXIAL T2 SPAIR |
LT SILICONE |
RT SILICONE |
SILICONE SEQUENCE |
|---|---|---|---|---|---|---|
| Total scan duration | 00:32.0 | 01:42.7 | 04:14.6 | 02:49.7 | 02:49.7 | 02:58.2 |
| Rel. SNR | 6.3 | 2.7 | 8.6 | 1.5 | 1.5 | 1.2 |
| Act. TR (ms) | — | — | 4715 | — | — | — |
| Act. TE (ms) | — | — | 70 | 65 | 65 | 65 |
| Act. TR/TE (ms) | 9.5 / 4.6 | 5.2 / 2.7 | — | — | — | — |
| Act. TR/TI (ms) | — | — | — | 14139 / 3100 | 14139 / 3100 | 14846 / 3100 |
| ACQ matrix M x P | 232 x 232 | 268 x 402 | 144 x 219 | 240 x 137 | 240 x 137 | 240 x 185 |
| ACQ voxel MPS (mm) | 1.51 / 1.51 / 7.00 | 0.60 / 0.60 / 2.00 | 1.11 / 1.11 / 2.00 | 1.25 / 1.95 / 3.00 | 1.25 / 1.95 / 3.00 | 1.25 / 1.62 / 3.00 |
| REC voxel MPS (mm) | 1.46 / 1.46 / 7.00 | 0.25 / 0.25 / 2.00 | 0.56 / 0.56 / 2.00 | 1.04 / 1.04 / 3.00 | 1.04 / 1.04 / 3.00 | 1.04 / 1.04 / 3.00 |
| Scan percentage (%) | 100 | 99 | 100 | 64 | 64 | 77 |
| Packages | — | — | 6 | 3 | 3 | 3 |
| Min. slice gap (mm) | — | — | 2 | 0.6 | 0.6 | 0.6 |
| Optimal slices | — | — | 30 | — | — | — |
| Act. slice gap (mm) | — | 0 | — | 0.3 | 0.3 | 0.3 |
| Max.slices | — | — | 90 | — | — | — |
| TFE shots | 2 | 630 | — | — | — | — |
| TFE dur. shot / acq (ms) | 426.5 / 369.3 | 160.7 / 160.7 | — | — | — | — |
| TFE shot interval (ms) | 426.5 | 160.7 | — | — | — | — |
| Min. TI delay | 229.3 | — | — | — | — | — |
| Act. WFS (pix) / BW (Hz) | 2.169 / 200.3 | 0.820 / 530.0 | — | — | — | — |
| Min. WFS (pix) / Max. BW (Hz) | 0.677 / 641.4 | 0.820 / 530.0 | — | — | — | — |
| WFS (pix) / BW (Hz) | — | — | 2.079 / 208.9 | 1.993 / 217.9 | 1.993 / 217.9 | 1.993 / 217.9 |
| TSE es / shot (ms) | — | — | 8.0 / 160 | 14.2 / 312 | 14.2 / 312 | 14.2 / 312 |
| TEeff / TEequiv (ms) | — | — | 70 / 52 | 65 / 59 | 65 / 59 | 65 / 59 |
| Min. TR (ms) | — | — | 4715 | — | — | — |
| Min. TR/TE (ms) | 9.5 / 3.9 | — | — | — | — | — |
| SPAIR offset act./default (Hz) | — | — | 220 [220] | — | — | — |
| Local torso SAR | < 42 % | < 24 % | < 100 % | < 79 % | < 79 % | < 80 % |
| Whole body SAR / level | < 0.9 W/kg / normal | < 0.5 W/kg / normal | < 2.1 W/kg / 1st level | < 1.7 W/kg / normal | < 1.7 W/kg / normal | < 1.7 W/kg / normal |
| SED | 0.0 kJ/kg | < 0.1 kJ/kg | < 0.5 kJ/kg | < 0.3 kJ/kg | < 0.3 kJ/kg | < 0.3 kJ/kg |
| Coil Power | 40% | 23% | 96% | 75% | 75% | 76% |
| Max B1+rms | 1.47 uT | 1.13 uT | 2.30 uT | 2.13 uT | 2.13 uT | 2.13 uT |
| PNS / level | 19 % / normal | 80 % / normal | 47 % / normal | 51 % / normal | 37 % / normal | 35 % / normal |
| dB/dt | 16.1 T/s | 58.4 T/s | 53.8 T/s | 45.8 T/s | 38.3 T/s | 40.7 T/s |
| Sound Pressure Level (dB) | -4.6 | 16.9 | 7.4 | 9.2 | 4.5 | 10.4 |
Geometry
| Scan Description | SURVEY | AXIAL T1 |
AXIAL T2 SPAIR |
LT SILICONE |
RT SILICONE |
SILICONE SEQUENCE |
|---|---|---|---|---|---|---|
| SmartSelect | yes | yes | yes | yes | yes | yes |
| Coil 1 (exclude) | — | None | None | None | None | None |
| Uniformity | CLEAR | CLEAR | CLEAR | CLEAR | CLEAR | CLEAR |
| FOV AP (mm) | 350 | 160 | 160 | 267 | 300 | 300 |
| FOV (mm) | 245, (19) 75 | — | — | — | — | — |
| FOV FH (mm) | 350 | 172 | 172 | 300 | 267 | 161 |
| FOV RL (mm) | — | 242 | 243 | 152 | 152 | 300 |
| ACQ voxel size AP (mm) | 1.5 | 0.6 | 1.1 | 1.5 | 1.25 | 1.25 |
| ACQ voxel size FH (mm) | 1.5 | 2 | — | 1.25 | 1.5 | — |
| ACQ voxel size RL (mm) | — | 0.6 | 1 | — | — | 1.5 |
| Slice thickness (mm) | 7 | — | 2 | 3 | 3 | 3 |
| Bar orientation | RL | — | — | — | — | — |
| VOI orientation | transverse | — | — | — | — | — |
| VOI size AP (mm) | 30 | — | — | — | — | — |
| VOI size RL (mm) | 30 | — | — | — | — | — |
| VOI size FH (mm) | 30 | — | — | — | — | — |
| Recon voxel size AP (mm) | 1.5 | 0.3 | 0.6 | 1 | 1 | 1 |
| Recon voxel size FH (mm) | 1.5 | 2 | — | 1 | 1 | — |
| Recon voxel size RL (mm) | — | 0.3 | 0.6 | — | — | 1 |
| Fold-over suppression | no | oversampling | oversampling | oversampling | oversampling | oversampling |
| L (mm) | — | 80.2 | 81.6 | 79.2 | — | 25 |
| R (mm) | — | 80.2 | 81.6 | 79.2 | — | 25 |
| F (mm) | — | — | — | — | 79.2 | — |
| H (mm) | — | — | — | — | 79.2 | — |
| A (mm) | 50 | — | — | — | — | — |
| P (mm) | 50 | — | — | — | — | — |
| Slice oversampling | — | user defined | — | — | — | — |
| oversample factor | — | 1 | — | — | — | — |
| ENCASE enable | — | no | — | — | — | — |
| Reconstruction matrix | 240 | 960 | 432 | 288 | 288 | 288 |
| SENSE | no | yes | yes | yes | yes | yes |
| P reduction (AP) | — | — | — | 3 | — | — |
| P reduction (FH) | — | — | — | — | 3 | — |
| P reduction (RL) | — | 1 | 2.3 | — | — | 3 |
| S reduction (FH) | — | 2 | — | — | — | — |
| CS-SENSE | yes | no | no | no | no | no |
| reduction | 3 | — | — | — | — | — |
| denoising | system default | — | — | — | — | — |
| k-t Acceleration | no | no | no | no | no | no |
| Stacks | 3 | 1 | 1 | 1 | 1 | 1 |
| type | (20) parallel | — | parallel | parallel | parallel | parallel |
| Slices | 15, (19) 5 | 86 | 86 | 46 | 46 | 49 |
| slice gap | user defined | — | user defined | default | default | default |
| gap (mm) | (20) 10 | — | 0 | — | — | — |
| Slice orientation | sagittal, transverse, (18) coronal | transverse | transverse | sagittal | sagittal | transverse |
| Fold-over direction | AP, (19) RL | RL | RL | AP | FH | RL |
| Fat shift direction | F, P, (18) F | P | P | F | P | P |
| radial axis | (2) AP, (18) RL | — | — | — | — | — |
| radial angle (deg) | (20) 0 | — | — | — | — | — |
| Multi-chunk | — | no | — | — | — | — |
| Minimum number of packages | — | — | 1 | 3 | 3 | 3 |
| Slice scan order | default | — | default | default | default | default |
| Stack scan order | ascend | — | — | — | — | — |
| O-MAR | — | — | no | no | no | no |
| Move table per stack | no | — | — | — | — | — |
| Large table movement | no | no | no | no | no | no |
| Stack alignment | no | — | — | — | — | — |
| Stack sort order | no | — | — | — | — | — |
| PlanAlign | no | no | no | no | no | no |
| REST slabs | 0 | 0 | 0 | 0 | 0 | 0 |
| Interactive positioning | no | no | no | no | no | no |
| Patient position | feet first | feet first | feet first | feet first | feet first | feet first |
| Patient body position | feet first | feet first | feet first | feet first | feet first | feet first |
| Patient orientation | prone | prone | prone | prone | prone | prone |
| Patient body orientation | prone | prone | prone | prone | prone | prone |
Contrast
| Scan Description | SURVEY | AXIAL T1 | AXIAL T2 SPAIR | LT SILICONE | RT SILICONE | SILICONE SEQUENCE |
|---|---|---|---|---|---|---|
| Scan type | Imaging | Imaging | Imaging | Imaging | Imaging | Imaging |
| Scan mode | M2D | 3D | MS | MS | MS | MS |
| technique | FFE | FFE | SE | IR | IR | IR |
| Modified SE | — | — | no | — | — | — |
| Contrast enhancement | T1 | T1 | — | — | — | — |
| Acquisition mode | cartesian | cartesian | cartesian | cartesian | cartesian | cartesian |
| Fast Imaging mode | TFE | TFE | TSE | TSE | TSE | TSE |
| shot mode | multishot | multishot | multishot | multishot | multishot | multishot |
| TFE factor | 39 | 31 | — | — | — | — |
| TSE factor | — | — | 20 | 22 | 22 | 22 |
| TE spacing | — | — | user defined | — | — | — |
| (ms) | — | — | 8 | — | — | — |
| startup Echoes | default | user defined | — | — | — | — |
| (number) | — | — | — | — | — | — |
| shot interval | shortest | shortest | — | — | — | — |
| profile order | linear | low_high | asymmetric | linear | linear | linear |
| turbo direction | — | Z | — | — | — | — |
| DRIVE | — | — | no | no | no | no |
| ultrashort | — | — | no | no | no | no |
| fid reduction | — | — | default | default | default | default |
| Echoes | 1 | 1 | 1 | 1 | 1 | 1 |
| partial echo | no | no | no | no | no | no |
| shifted echo | no | no | — | — | — | — |
| TE | in-phase | shortest | user defined | user defined | user defined | user defined |
| (ms) | 4.6 | — | 70 | 65 | 65 | 65 |
| Flip angle (deg) | 25 | 12 | 90 | — | — | — |
| Refocusing control | — | — | T2-optimized | constant | constant | constant |
| angle (deg)/min. angle (deg) | — | — | 70 | 120 | 120 | 120 |
| mid. angle (deg) | — | — | 120 | — | — | — |
| max. angle (deg) | — | — | 160 | — | — | — |
| TR | shortest | shortest | range | shortest | shortest | shortest |
| minimum (ms) | — | — | 4000 | — | — | — |
| maximum (ms) | — | — | 5000 | — | — | — |
| Halfscan | no | yes | no | yes | yes | yes |
| factor | — | — | — | 0.6 | 0.6 | 0.6 |
| factor Y | — | 0.6 | — | — | — | — |
| factor Z | — | 1 | — | — | — | — |
| Water-fat shift | maximum | minimum | maximum | user defined | user defined | user defined |
| (pixels) | — | — | — | 2 | 2 | 2 |
| IR delay (ms) | — | — | — | 3100 | 3100 | 3100 |
| acquire during delay | — | — | — | yes | yes | yes |
| dual | — | — | — | yes | yes | yes |
| delay (ms) | — | — | — | 220 | 220 | 220 |
| power | — | — | — | 1 | 1 | 1 |
| RF Shims | fixed | smart | smart | adaptive | adaptive | adaptive |
| Shim | default | SmartBreast | SmartBreast | SmartBreast | SmartBreast | default |
| mDIXON | no | no | no | no | no | no |
| Fat suppression | no | no | SPAIR | no | no | no |
| power | — | — | 2 | — | — | — |
| inversion delay | — | — | auto | — | — | — |
| suppr. level | — | — | strong | — | — | — |
| frequency offset | — | — | user defined | — | — | — |
| offset (Hz) | — | — | 220 | — | — | — |
| Water suppression | no | no | no | no | no | no |
| TFE prepulse | invert | no | — | — | — | — |
| slice selection | no | — | — | — | — | — |
| shared | no | — | — | — | — | — |
| delay | shortest | — | — | — | — | — |
| PSIR | no | — | — | — | — | — |
| BB pulse | — | — | no | no | no | no |
| MTC | no | no | no | no | no | no |
| Diffusion mode | no | no | no | no | no | no |
| T1 mapping | no | no | no | no | no | no |
| SAR mode | high | high | high | high | high | high |
| B1 mode | default | default | default | default | default | default |
| SAR allow first level | yes | yes | yes | yes | yes | yes |
| Patient pregnancy | no | no | no | no | no | no |
| Patient WB SAR [W/kg] | — | — | — | — | — | — |
| Patient Head SAR [W/kg] | — | — | — | — | — | — |
| Patient max. dB/dt [T/s] | — | — | — | — | — | — |
| Max slewrate [T/m/s] | — | — | — | — | — | — |
| Max. B1+rms [uT] | — | — | — | — | — | — |
| PNS mode | low | moderate | low | low | low | low |
| Gradient mode | regular | default | default | default | default | default |
Motion
| Scan Description | SURVEY | AXIAL T1 |
AXIAL T2 SPAIR |
LT SILICONE |
RT SILICONE |
SILICONE SEQUENCE |
|---|---|---|---|---|---|---|
| Cardiac synchronization | no | no | no | no | no | no |
| Respiratory compensation | no | no | no | no | no | no |
| Navigator respiratory comp | no | no | no | no | no | no |
| Flow compensation | no | no | no | no | no | no |
| fMRI echo stabilisation | no | no | — | — | — | — |
| Temporal slice spacing | — | — | default | — | — | — |
| Motion smoothing | — | — | no | no | no | no |
| NSA | 1 | 1 | 1 | 1 | 1 | 1 |
| MRE enable | no | no | no | no | no | no |
Dynamic Angio
| Scan Description | SURVEY | AXIAL T1 |
AXIAL T2 SPAIR |
LT SILICONE |
RT SILICONE |
SILICONE SEQUENCE |
|---|---|---|---|---|---|---|
| Angio / Contrast enh. | no | no | — | — | — | — |
| Quantitative flow | no | no | — | — | — | — |
| CENTRA | — | no | — | — | — | — |
| Manual start | no | no | no | no | no | no |
| Dynamic study | no | no | no | no | no | no |
| Arterial Spin labeling | no | no | no | no | no | no |
Post Processing
| Scan Description | SURVEY | AXIAL T1 |
AXIAL T2 SPAIR |
LT SILICONE |
RT SILICONE |
SILICONE SEQUENCE |
|---|---|---|---|---|---|---|
| Preparation phases | auto | auto | full | full | full | full |
| Interactive F0 | no | auto | select | select | select | select |
| Quick Survey | default | default | default | default | default | default |
| MIP/MPR | no | no | no | MIP | MIP | MIP |
| protocol | — | — | — | compose | compose | compose |
| SWIp | no | no | — | — | — | — |
| Images | M, (3) no | M, (3) no | M, (3) no | M, R, (2) no | M, R, (2) no | M, R, (2) no |
| Autoview image | M | M | M | M | M | M |
| Calculated images | (4) no | (4) no | (4) no | — | — | — |
| Reference tissue | Breast | Breast | Breast | Breast | Breast | Breast |
| Recon compression | No | No | No | No | No | No |
| Preset window contrast | soft | soft | soft | soft | soft | soft |
| Reconstruction mode | real time | real time | real time | real time | real time | real time |
| Save raw data | no | no | no | no | no | no |
| Hardcopy protocol | no | no | no | no | no | no |
| Image filter | system default | system default | system default | system default | system default | system default |
| Uniformity correction | no | no | yes | no | no | no |
| Geometry correction | default | default | default | default | default | default |
| Elliptical k-space shutter | — | default | — | — | — | — |
| Free rotatable | no | no | no | no | no | no |
| IF_info_seperator | 1634755923 | 1634755923 | 1634755923 | 1634755923 | 1634755923 | 1634755923 |