Internal Auditory Canal 3T
Philips Healthcare – MR Gadopiclenol (VUEWAY®) Protocols
Instructions And Patient Preparation
- Instructions
- • Change patient into hospital issued gown and pants
• 20- to 22-gauge IV access preferred
• Hand inject - Position
- Supine, head first
- Coil
- 32 channel head coil
- Landmark
- Glabella
Contrast Agent Parameters
| Contrast Agent | Dose | Injection Rate | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Gadopiclenol (VUEWAY) | 0.05 mmol/kg | 1-2 mL/sec | ||||||||
| Saline Flush | 10-20 mL | 1-2 mL/sec | ||||||||
| Comments | Axial T2 Thin and Axial T2 Flair Thin coverage through posterior fossa; Cisternogram and Axial 3D Nerve view centered over IACs | |||||||||
Info Page
| Scan Description | Survey | AXIAL T2 Thin |
AXIAL T2 FLAIR Thin |
CORONAL T1 |
AXIAL T1 |
AXIAL 3D Brain Nerve View |
Source DTI |
Cisternogram | AXIAL T1 +C |
CORONAL T1 +C Fat Sat |
|---|---|---|---|---|---|---|---|---|---|---|
| View Image | View Image | View Image | View Image | View Image | View Image | View Image | View Image | View Image | ||
| Total scan duration | — | 02:12.0 | 02:45.0 | 01:36.7 | 01:22.9 | 04:04.2 | 02:00.8 | 02:50.0 | 01:22.9 | 02:00.6 |
| Rel. SNR | — | 0.5 | 0.6 | 0.7 | 0.6 | 0.5 | 1.4 | 0.2 | 0.6 | 0.6 |
| Act. TR (ms) | — | 3000 | — | 691 | 592 | — | 4923 | 2000 | 592 | 574 |
| Act. TE (ms) | — | 80 | 120 | 10 | 10 | 170 | 68 | 225 | 10 | 10 |
| Act. TR/TI (ms) | — | — | 11000 / 2800 | — | — | 2200 / 250 | — | — | — | — |
| ACQ matrix M x P | — | 360 x 300 | 224 x 182 | 360 x 285 | 360 x 285 | 400 x 336 | 112 x 112 | 376 x 300 | 360 x 285 | 360 x 285 |
| ACQ voxel MPS (mm) | — | 0.50 / 0.60 / 3.00 | 0.80 / 0.99 / 3.00 | 0.50 / 0.63 / 3.00 | 0.50 / 0.63 / 3.00 | 0.60 / 0.60 / 2.00 | 2.00 / 2.00 / 3.00 | 0.40 / 0.50 / 1.00 | 0.50 / 0.63 / 3.00 | 0.50 / 0.63 / 3.00 |
| REC voxel MPS (mm) | — | 0.42 / 0.42 / 3.00 | 0.47 / 0.47 / 3.00 | 0.35 / 0.35 / 3.00 | 0.35 / 0.35 / 3.00 | 0.60 / 0.60 / 1.00 | 1.00 / 1.00 / 3.00 | 0.29 / 0.29 / 0.50 | 0.35 / 0.35 / 3.00 | 0.35 / 0.35 / 3.00 |
| Scan percentage (%) | — | 83 | 81 | 79 | 79 | 100 | 100 | 80 | 79 | 79 |
| Packages | — | 4 | 3 | 2 | 2 | — | 1 | — | 2 | 3 |
| Min. slice gap (mm) | — | 3 | 3 | 3 | 3 | — | 0 | — | 3 | 3 |
| Act. slice gap (mm) | — | 0.3 | — | 0.3 | 0.3 | -1.0 | — | -0.5 | 0.3 | 0.3 |
| Optimal slices | — | 14 | 16 | — | — | — | — | — | — | 10 |
| Max. slices | — | 28 | — | — | — | — | — | — | — | 15 |
| EPI factor | — | — | — | — | — | — | 45 | — | — | — |
| WFS (pix) / BW (Hz) | — | 1.977 / 219.8 | 1.997 / 217.6 | 2.477 / 175.4 | 2.477 / 175.4 | 1.487 / 292.1 | 13.193 / 32.9 | 1.581 / 274.7 | 2.477 / 175.4 | 2.477 / 175.4 |
| BW in EPI freq. dir. (Hz) | — | — | — | — | — | — | 1844.5 | — | — | — |
| TSE es / shot (ms) | — | 10.0 / 160 | 10.9 / 229 | 10.0 / 30 | 10.0 / 30 | 12.8 / 358 | — | 7.9 / 449 | 10.0 / 30 | 10.0 / 30 |
| TEeff / TEequiv (ms) | — | 80 / 72 | 120 / 106 | 10.0 / 10 | 10-Oct | 170 / 85 | — | 225 / 198 | 10.0 / 10 | 10.0 / 10 |
| Min. TR (ms) | — | 2419 | — | 691 | 592 | — | — | 664 | 592 | 574 |
| Min. TR/TI (ms) | — | — | 8175 / 50 | — | — | 1174 / 50 | — | — | — | — |
| Local torso SAR | — | < 81 % | < 48 % | < 100 % | < 100 % | < 53 % | < 83 % | < 33 % | < 100 % | < 100 % |
| Whole body SAR / level | — | < 1.9 W/kg / normal | < 1.1 W/kg / normal | < 2.3 W/kg / 1st level | < 2.3 W/kg / 1st level | < 1.3 W/kg / normal | < 1.9 W/kg / normal | < 1.1 W/kg / normal | < 2.3 W/kg / 1st level | < 2.3 W/kg / 1st level |
| SED | — | < 0.2 kJ/kg | < 0.2 kJ/kg | < 0.2 kJ/kg | < 0.2 kJ/kg | < 0.3 kJ/kg | < 0.2 kJ/kg | < 0.2 kJ/kg | < 0.2 kJ/kg | < 0.3 kJ/kg |
| Coil Power | — | 38% | 23% | 48% | 48% | 25% | 39% | 32% | 48% | 48% |
| Max B1+rms | — | 1.47 uT | 1.15 uT | 1.62 uT | 1.62 uT | 1.18 uT | 1.47 uT | 1.32 uT | 1.62 uT | 1.62 uT |
| PNS / level | — | 25 % / normal | 24 % / normal | 36 % / normal | 37 % / normal | 57 % / normal | 86 % / 1st level | 62 % / normal | 37 % / normal | 36 % / normal |
| dB/dt | — | 15.4 T/s | 15.4 T/s | 36.6 T/s | 34.3 T/s | 45.1 T/s | 112.7 T/s | 92.2 T/s | 34.3 T/s | 36.6 T/s |
| Sound Pressure Level (dB) | — | 3 | 4.8 | 11.3 | 11.4 | 22.6 | 21.9 | 19.6 | 11.4 | 12.3 |
Geometry
| Scan Description | Survey | AXIAL T2 Thin |
AXIAL T2 FLAIR Thin |
CORONAL T1 |
AXIAL T1 |
AXIAL 3D Brain Nerve View |
Source DTI |
Cisternogram | AXIAL T1 +C |
CORONAL T1 +C Fat Sat |
|---|---|---|---|---|---|---|---|---|---|---|
| SmartSelect | yes | yes | yes | yes | yes | yes | yes | yes | yes | yes |
| Coil 1 (exclude) | — | None | None | None | None | None | None | None | None | None |
| Uniformity | CLEAR | CLEAR | CLEAR | CLEAR | CLEAR | CLEAR | CLEAR | CLEAR | CLEAR | CLEAR |
| FOV AP (mm) | 250 | 180 | 180 | 46 | 180 | 240 | 224 | 150 | 180 | 46 |
| FOV (mm) | 17, (19) 53 | — | — | — | — | — | — | — | — | — |
| FOV FH (mm) | 250 | 79 | 79 | 180 | 39 | 75 | 150 | 40 | 39 | 180 |
| FOV RL (mm) | — | 180 | 180 | 180 | 180 | 202 | 224 | 150 | 180 | 180 |
| ACQ voxel size AP (mm) | 1 | 0.5 | 1 | — | 0.5 | 1 | 2 | 0.4 | 0.5 | — |
| ACQ voxel size FH (mm) | 1 | — | — | 0.5 | — | 2 | — | 1 | — | 0.5 |
| ACQ voxel size RL (mm) | — | 0.6 | 0.8 | 1 | 1 | 0.6 | 2 | 0.5 | 0.6 | 0.6 |
| Slice thickness (mm) | 5 | 3 | 3 | 3 | 3 | — | 3 | — | 3 | 3 |
| Bar orientation | RL | — | — | — | — | — | — | — | — | — |
| VOI orientation | transverse | — | — | — | — | — | — | — | — | — |
| VOI size AP (mm) | 30 | — | — | — | — | — | — | — | — | — |
| VOI size FH (mm) | 30 | — | — | — | — | — | — | — | — | — |
| VOI size RL (mm) | 30 | — | — | — | — | — | — | — | — | — |
| Recon voxel size AP (mm) | 1 | 0.4 | 0.5 | — | 0.4 | 0.6 | 1 | 0.3 | 0.4 | — |
| Recon voxel size FH (mm) | 1 | — | — | 0.4 | — | 1 | — | 0.5 | — | 0.4 |
| Recon voxel size RL (mm) | — | 0.4 | 0.5 | 0.4 | 0.4 | 0.6 | 1 | 0.3 | 0.4 | 0.4 |
| Fold-over suppression | oversampling | no | no | oversampling | oversampling | oversampling | no | oversampling | oversampling | oversampling |
| A (mm) | 50 | — | — | — | — | — | — | — | — | — |
| L (mm) | — | — | — | 5 | 5 | 0 | — | 10 | 5 | 5 |
| P (mm) | 50 | — | — | — | — | — | — | — | — | — |
| R (mm) | — | — | — | 5 | 5 | 0 | — | 10 | 5 | 5 |
| Slice oversampling | — | — | — | — | — | user defined | — | default | — | — |
| oversample factor | — | — | — | — | — | 1.5 | — | — | — | — |
| Reconstruction matrix | 256 | 432 | 384 | 512 | 512 | 400 | 224 | 512 | 512 | 512 |
| SENSE | no | no | no | no | no | no | yes | no | no | no |
| P reduction (AP) | — | — | — | — | — | — | 2.5 | — | — | — |
| MB SENSE | — | — | — | — | — | — | no | — | — | — |
| CS-SENSE | no | yes | yes | yes | yes | yes | no | yes | yes | yes |
| reduction | — | 2 | 2.3 | 1.5 | 1.5 | 5 | — | 5 | 1.5 | 1.5 |
| denoising | — | system default | system default | system default | system default | system default | — | system default | system default | system default |
| k-t Acceleration | no | no | no | no | no | no | no | no | no | no |
| Stacks | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| type | (20) parallel | parallel | parallel | parallel | parallel | — | parallel | — | parallel | parallel |
| Slices | 3, (19) 9 | 24 | 24 | 14 | 12 | 75 | 50 | 80 | 12 | 14 |
| slice gap | user defined | default | user defined | default | default | — | user defined | — | default | default |
| gap (mm) | (20) 1 | — | 0.30 | — | — | — | 0 | — | — | — |
| Slice orientation | sagittal, coronal, transverse, (17) coronal | transverse | transverse | coronal | transverse | transverse | transverse | transverse | transverse | coronal |
| Fold-over direction | AP, FH, AP, (17) RL | RL | RL | RL | RL | RL | AP | RL | RL | RL |
| Fat shift direction | F, (2) L, (17) F | P | P | F | P | P | P | P | P | F |
| radial axis | AP, RL, AP, (17) RL | — | — | — | — | — | — | — | — | — |
| radial angle (deg) | (20) 0 | — | — | — | — | — | — | — | — | — |
| Stacks as packages | yes | — | — | — | — | — | — | — | — | — |
| Multi-chunk | — | — | — | — | — | no | — | no | — | — |
| Minimum number of packages | 1 | 1 | 3 | 1 | 1 | — | 1 | — | 1 | 1 |
| Slice scan order | interleaved | default | default | default | default | — | default | — | default | default |
| Stack scan order | ascend | — | — | — | — | — | — | — | — | — |
| Move table per stack | no | — | — | — | — | — | — | — | — | — |
| O-MAR | no | no | no | no | no | no | — | no | no | no |
| Large table movement | no | no | no | no | no | no | no | no | no | no |
| Stack alignment | no | — | — | — | — | — | — | — | — | — |
| Stack sort order | no | — | — | — | — | — | — | — | — | — |
| PlanAlign | no | no | no | no | no | no | no | no | no | no |
| REST slabs | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
| type | — | — | — | — | — | — | — | parallel | — | — |
| orientation | — | — | — | — | — | — | transverse | — | — | — |
| thickness (mm) | — | — | — | — | — | — | — | 60 | — | — |
| position | — | — | — | — | — | — | — | feet | — | — |
| gap | — | — | — | — | — | — | — | default | — | — |
| power | — | — | — | — | — | — | — | 1 | — | — |
| Patient position | head first | head first | head first | head first | head first | head first | head first | head first | head first | head first |
| Patient body position | head first | head first | head first | head first | head first | head first | head first | head first | head first | head first |
| Patient orientation | supine | supine | supine | supine | supine | supine | supine | supine | supine | supine |
| Patient body orientation | supine | supine | supine | supine | supine | supine | supine | supine | supine | supine |
Contrast
| Scan Description | Survey | AXIALT2 Thin | AXIALT2 FLAIR Thin | CORONALT1 | AXIALT1 | AXIAL3D Brain Nerve View | SourceDTI | Cisternogram | AXIALT1 +C | CORONAL T1 +C Fat Sat |
|---|---|---|---|---|---|---|---|---|---|---|
| Scan type | Imaging | Imaging | Imaging | Imaging | Imaging | Imaging | Imaging | Imaging | Imaging | Imaging |
| Scan mode | MS | MS | MS | MS | MS | 3D | MS | 3D | MS | MS |
| Modified SE | no | no | — | no | no | — | no | no | no | no |
| Acquisition mode | cartesian | cartesian | cartesian | cartesian | cartesian | cartesian | cartesian | cartesian | cartesian | cartesian |
| Fast Imaging mode | TSE | TSE | TSE | TSE | TSE | TSE | EPI | TSE | TSE | TSE |
| 3D VIEW | — | — | — | — | — | Nerve STIR | — | no | — | — |
| TSE factor | — | 15 | 21 | 3 | 3 | 26 | — | 56 | 3 | 3 |
| 3D non-selective | — | — | — | — | — | — | — | yes | — | — |
| Echoes | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| TE | shortest | user defined | user defined | user defined | user defined | user defined | shortest | shortest | user defined | user defined |
| Flip angle (deg) | 90 | 90 | — | 90 | 90 | — | 90 | 90 | 90 | 90 |
| Refocusing control | constant | constant | constant | constant | constant | — | — | constant | constant | constant |
| TR | user defined | user defined | user defined | range | range | user defined | shortest | user defined | range | range |
| Halfscan | yes | no | no | no | no | yes | yes | no | no | no |
| Water-fat shift | maximum | maximum | user defined | maximum | maximum | user defined | minimum | maximum | maximum | maximum |
| IR delay (ms) | — | — | 2800 | — | — | 250 | — | — | — | — |
| RF Shims | fixed | fixed | fixed | fixed | fixed | fixed | fixed | fixed | fixed | fixed |
| Shim | default | default | default | default | default | default | PB-volume | default | default | default |
| ShimAlign | — | — | — | — | — | — | no | — | — | — |
| mDIXON | no | no | no | no | no | no | no | no | no | no |
| Fat suppression | no | no | SPIR | no | no | no | SPIR | no | no | SPIR |
| Grad Rev Fat suppr | — | — | — | — | — | — | no | — | — | — |
| Water suppression | no | no | no | no | no | no | no | no | no | no |
| BB pulse | no | no | no | no | no | MSDE | no | no | no | no |
| MSDE mode | — | — | — | — | — | user defined | — | — | — | — |
| TEprep | — | — | — | — | — | user defined | — | — | — | — |
| Venc (RL, AP, FH) | — | — | — | — | — | (3) 2 | — | — | — | — |
| MTC | no | no | no | no | no | no | no | no | no | no |
| Diffusion mode | no | no | no | no | no | no | DTI | no | no | no |
| T1 mapping | no | no | no | no | no | no | no | no | no | no |
| SAR mode | high | high | high | high | high | high | high | high | high | high |
| B1 mode | default | default | default | default | default | default | default | default | default | default |
| SAR allow first level | yes | yes | yes | yes | yes | yes | yes | yes | yes | yes |
| PNS mode | low | low | low | low | low | low | high | high | low | low |
| Gradient mode | default | default | default | default | default | default | maximum | maximum | default | default |
| SofTone mode | no | user defined | user defined | no | no | no | no | no | no | no |
Motion
| Scan Description | Survey | AXIAL T2 Thin |
AXIAL T2 FLAIR Thin |
CORONAL T1 |
AXIAL T1 |
AXIAL 3D Brain Nerve View |
Source DTI |
Cisternogram | AXIAL T1 +C |
CORONAL T1 +C Fat Sat |
|---|---|---|---|---|---|---|---|---|---|---|
| Cardiac synchronization | no | no | no | no | no | no | no | no | no | no |
| Respiratory compensation | no | no | no | no | no | no | no | no | no | no |
| Navigator respiratory comp | no | no | no | no | no | no | no | no | no | no |
| Flow compensation | no | no | no | no | no | no | no | no | no | no |
| Temporal slice spacing | default | default | — | default | default | — | default | — | default | default |
| Motion smoothing | no | no | no | no | no | yes | — | no | no | no |
| NSA | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| MRE enable | no | no | no | no | no | no | no | no | no | no |
| CENTRA | — | — | — | — | — | no | — | no | — | — |
Dynamic Angio
| Scan Description | Survey | AXIAL T2 Thin |
AXIAL T2 FLAIR Thin |
CORONAL T1 |
AXIAL T1 |
AXIAL 3D Brain Nerve View |
Source DTI |
Cisternogram | AXIAL T1 +C |
CORONAL T1 +C Fat Sat |
|---|---|---|---|---|---|---|---|---|---|---|
| Manual start | no | no | no | no | no | no | no | no | no | no |
| Dynamic study | no | no | no | no | no | no | no | no | no | no |
| dyn stabilization | — | — | — | — | — | — | regular | — | — | — |
| Arterial Spin labeling | no | no | no | no | no | no | no | no | no | no |
Post Processing
| Scan Description | Survey | AXIAL T2 Thin |
AXIAL T2 FLAIR Thin |
CORONAL T1 |
AXIAL T1 |
AXIAL 3D Brain Nerve View |
Source DTI |
Cisternogram | AXIAL T1 +C |
CORONAL T1 +C Fat Sat |
|---|---|---|---|---|---|---|---|---|---|---|
| Preparation phases | auto | auto | auto | auto | auto | auto | auto | auto | auto | auto |
| Interactive F0 | no | no | no | no | no | no | no | no | no | no |
| Quick Survey | default | default | default | default | default | default | default | default | default | default |
| B0 field map | no | no | no | no | no | no | no | no | no | no |
| MIP/MPR | no | no | no | no | no | no | no | no | no | no |
| Images | M, (3) no | M, (3) no | M, (3) no | M, (3) no | M, (3) no | M, (3) no | M, (3) no | M, (3) no | M, (3) no | M, (3) no |
| Autoview image | M | M | M | M | M | M | M | M | M | M |
| Calculated images | (4) no | (4) no | — | (4) no | (4) no | — | (4) no | (4) no | (4) no | (4) no |
| Reference tissue | Grey matter | Grey matter | White matter | Grey matter | Grey matter | Grey matter | Grey matter | Grey matter | Grey matter | Grey matter |
| Recon compression | No | No | No | No | No | No | No | High | No | No |
| Preset window contrast | soft | soft | soft | soft | soft | soft | soft | soft | soft | soft |
| Reconstruction mode | real time | real time | real time | real time | real time | real time | immediate | real time | real time | real time |
| Save raw data | no | no | no | no | no | no | no | no | no | no |
| Hardcopy protocol | no | no | no | no | no | no | no | no | no | no |
| Image filter | system default | system default | system default | system default | system default | system default | system default | system default | system default | system default |
| Uniformity correction | no | no | no | no | no | no | no | no | no | no |
| Geometry correction | default | default | default | default | default | default | default | default | default | default |
| Elliptical k-space shutter | — | — | — | — | — | default | — | default | — | — |
| EPI geometry correction | — | — | — | — | — | — | no | — | — | — |
| ADC correction | — | — | — | — | — | — | no | — | — | — |
| IF_info_seperator | 1634755923 | 0 | 0 | 1634755923 | 1634755923 | 1634755923 | 0 | 1634755923 | 1634755923 | 1634755923 |