Brain MR Venography 3T
Philips Healthcare – MR Gadopiclenol (VUEWAY®) Protocols
Instructions And Patient Preparation
- Instructions
- • Sequences are in addition to the Routine Adult Brain protocol. For hyperacute patient, assess for penumbra
• No patient preparation
• 20- to 22-gauge IV access preferred
• Power injection preferred - Position
- Supine, head first
- Coil
- SENSE-Head-8 channel coil preferred
- Landmark
- Glabella
Contrast Agent Parameters
| Contrast Agent | Dose | Injection Rate | Dose Timing Method and Scan Delay | ||
|---|---|---|---|---|---|
| Gadopiclenol (VUEWAY) | 0.05 mmol/kg | 1-1.5 mL/sec | Hand bolus or power injection | ||
| Saline Flush | 20 mL | 1-1.5 mL/sec | Hand bolus or power injection | ||
| Comments | Report agent administered and dose | ||||
Info Page
| Scan Description | Survey | AXIAL TOF Venogram Pre |
CORONAL TOF Venogram Pre |
AXIAL TOF Venogram +Gd |
AXIAL MPRAGE Venogram +Gd |
|---|---|---|---|---|---|
| View Image | View Image | View Image | View Image | ||
| Total scan duration | 00:31.4 | 02:06.2 | 02:06.2 | 02:06.2 | 04:13.8 |
| Rel. SNR | 1 | 0 | 0 | 0 | 0.4 |
| Act. TR/TE(ms) | 11 / 4.6 | 23 / 3.5 | 23 / 3.5 | 23 / 3.5 | 12 / 6.1 |
| ACQ matrix M x P | 268 x 128 | 260 x 260 | 260 x 260 | 260 x 260 | 420 x 420 |
| ACQ voxel MPS (mm) | 0.97 / 2.03 / 10.0 | 0.85 / 0.85 / 2.50 | 0.85 / 0.85 / 2.50 | 0.85 / 0.85 / 2.50 | 0.57 / 0.57 / 1.20 |
| REC voxel MPS (mm) | 0.90 / 0.90 / 10.0 | 0.42 / 0.42 / 2.50 | 0.42 / 0.42 / 2.50 | 0.42 / 0.42 / 2.50 | 0.56 / 0.56 / 1.20 |
| Scan percentage (%) | 48 | 100 | 100 | 100 | 100 |
| Act. slice gap (mm) | ― | ― | ― | ― | 0 |
| TFE shots | 2 | ― | ― | ― | 112 |
| TFE dur. shot / acq(ms) | 1162.5 / 704.0 | ― | ― | ― | 1756.2 / 1691.1 |
| TFE shot interval (ms) | 1162.5 | ― | ― | ― | ― |
| Min. TI delay | 397.4 | ― | ― | ― | 897.511475 |
| Act. WFS (pix) / BW (Hz) | 3.101 / 140.1 | 3.198 / 135.8 | 3.198 / 135.8 | 3.198 / 135.8 | 3.969 / 109.4 |
| Min. WFS (pix) / Max. BW (Hz) | 0.587 / 740.3 | 0.542 / 801.3 | 0.542 / 801.3 | 0.542 / 801.3 | 0.919 / 472.4 |
| Min. TR/TE(ms) | 9.4 / 3.7 | 23 / 3.3 | 23 / 3.3 | 23 / 3.3 | ― |
| Local torso SAR | < 12 % | < 62 % | < 62 % | < 62 % | < 8 % |
| Whole body SAR / level | < 0.4 W/kg / normal | < 2.0 W/kg / normal | < 2.0 W/kg / normal | < 2.0 W/kg / normal | < 0.3 W/kg / normal |
| SED | 0.0 kJ/kg | < 0.3 kJ/kg | < 0.3 kJ/kg | < 0.3 kJ/kg | < 0.1 kJ/kg |
| Coil Power | 0% | 0% | 0% | 0% | 0% |
| Max B1+rms | 0.79 uT | 1.80 uT | 1.80 uT | 1.80 uT | 0.64 uT |
| PNS / level | 53 % / normal | 62 % / normal | 90 % / 1st level | 62 % / normal | 66 % / normal |
| dB/dt | 46.6 T/s | 87.0 T/s | 85.0 T/s | 87.0 T/s | 63.9 T/s |
| Sound Pressure Level (dB) | 10.4 | 14.1 | 13.8 | 14.1 | 8.9 |
| Boil-off (hPa/h) | ― | 3.6 | 5.4 | 3.6 | 3.6 |
| Max Boil-off (hPa/h) | ― | 3.6 | 5.4 | 3.6 | 4.8 |
| Boil-off (hPa) | ― | 0.1 | 0.2 | 0.1 | 0.3 |
Geometry
| Scan Description | Survey | AXIAL TOF Venogram Pre |
CORONAL TOF Venogram Pre |
AXIAL TOF Venogram +Gd |
AXIAL MPRAGE Venogram +Gd |
|---|---|---|---|---|---|
| Nucleus | ― | H1 | H1 | H1 | H1 |
| SmartSelect | ― | yes | yes | yes | yes |
| Coil 1 (exclude) | ― | None | None | None | None |
| Uniformity | Classic | CLEAR | CLEAR | CLEAR | CLEAR |
| FOV AP (mm) | 260 | 220 | 151 | 220 | 240 |
| FOV FH (mm) | 260 | 151 | 220 | 151 | 180 |
| FOV RL (mm) | ― | 220 | 220 | 220 | 240 |
| stack RL (mm) | 50 | ― | ― | ― | ― |
| ACQ voxel size AP (mm) | 2 | 0.9 | ― | 0.9 | 0.6 |
| ACQ voxel size FH (mm) | 1 | ― | 0.9 | ― | 1.2 |
| ACQ voxel size RL (mm) | ― | 0.8 | 0.8 | 0.8 | 0.6 |
| Slice thickness (mm) | 10 | 2.5 | 2.5 | 2.5 | ― |
| Recon voxel size AP (mm) | 0.9 | 0.4 | ― | 0.4 | 0.6 |
| Recon voxel size FH (mm) | 0.9 | ― | 0.4 | ― | 1.2 |
| Recon voxel size RL (mm) | ― | 0.4 | 0.4 | 0.4 | 0.6 |
| Fold-over suppression | no | no | no | no | no |
| Slice oversampling | ― | ― | ― | ― | user defined |
| oversample factor | ― | ― | ― | ― | 1.5 |
| ENCASE enable | ― | ― | ― | ― | no |
| Reconstruction matrix | 288 | 528 | 528 | 528 | 432 |
| SENSE | no | no | no | no | no |
| CS-SENSE | ― | yes | yes | yes | yes |
| reduction | ― | 5 | 5 | 5 | 5 |
| denoising | ― | system default | system default | system default | system default |
| k-t Acceleration | ― | no | no | no | no |
| Stacks | 3 | 1 | 1 | 1 | 1 |
| current | A | ― | ― | ― | ― |
| type | parallel | parallel | parallel | parallel | ― |
| slices | 3 | 100 | 100 | 100 | 150 |
| slice gap | user defined | user defined | user defined | user defined | ― |
| gap (mm) | 10 | -1 | -1 | -1 | ― |
| slice orientation | sagittal | transverse | coronal | transverse | transverse |
| fold-over direction | AP | RL | RL | RL | RL |
| fat shift direction | F | P | F | P | P |
| Slice scan order | default | FH | PA | FH | ― |
| Stack scan order | ascend | ― | ― | ― | ― |
| Stack sort order | no | ― | ― | ― | ― |
| Multi-chunk | ― | ― | ― | ― | no |
| Large table movement | ― | no | no | no | no |
| Plan Align | no | no | no | no | no |
| REST slabs | 0 | 1 | 1 | 1 | 0 |
| type | ― | parallel | perpendicular | parallel | ― |
| thickness (mm) | ― | 20 | 20 | 20 | ― |
| position | ― | feet | left | feet | ― |
| gap | ― | user defined | 100 | user defined | ― |
| (mm) | ― | 10 | 90 | 10 | ― |
| power | ― | 1 | 1 | 1 | ― |
| Interactive positioning | ― | no | no | no | no |
| Allow table movement | ― | no | no | no | no |
| Patient position | ― | head first | head first | head first | head first |
| Patient body position | ― | head first | head first | head first | head first |
| Patient orientation | ― | supine | supine | supine | supine |
| Patient body orientation | ― | supine | supine | supine | supine |
Contrast
| Scan Description | Survey | AXIALTOF VenogramPre | CORONALTOF VenogramPre | AXIALTOF Venogram+Gd | AXIALMPRAGE Venogram +Gd |
|---|---|---|---|---|---|
| Scan type | ― | Imaging | Imaging | Imaging | Imaging |
| Scan mode | M2D | M2D | M2D | M2D | 3D |
| technique | FFE | FFE | FFE | FFE | FFE |
| 3D non-selective | ― | ― | ― | ― | no |
| Contrast enhancement | T1 | T1 | T1 | T1 | T1 |
| Acquisition mode | ― | cartesian | cartesian | cartesian | cartesian |
| Fast Imaging mode | TFE | none | none | none | TFE |
| shot mode | multishot | ― | ― | ― | multishot |
| TFE factor | 64 | ― | ― | ― | 138 |
| startup echoes | default | ― | ― | ― | default |
| shot interval | shortest | ― | ― | ― | user defined |
| (ms) | ― | ― | ― | ― | 2250 |
| profile order | linear | ― | ― | ― | linear |
| turbo direction | ― | ― | ― | ― | Z |
| Echoes | 1 | 1 | 1 | 1 | 1 |
| partial echo | no | yes | yes | yes | no |
| shifted echo | ― | no | no | no | no |
| TE | in-phase | out-phase | out-phase | out-phase | shortest |
| (ms) | 4.6 | 3.5 | 3.5 | 3.5 | ― |
| Flip angle (deg) | 15 | 60 | 60 | 60 | 9 |
| TR | user defined | shortest | shortest | shortest | shortest |
| (ms) | 11 | ― | ― | ― | ― |
| Halfscan | no | no | no | no | no |
| Water-fat shift | user defined | maximum | maximum | maximum | maximum |
| (pixels) | 3.5 | ― | ― | ― | ― |
| RF Shims | fixed | adaptive | adaptive | adaptive | fixed |
| Shim | default | default | default | default | default |
| mDIXON | no | no | no | no | no |
| Fat suppression | no | no | no | no | no |
| Water suppression | no | no | no | no | no |
| TFE prepulse | invert | ― | ― | ― | invert |
| slice selection | no | ― | ― | ― | no |
| delay | user defined | ― | ― | ― | user defined |
| (ms) | 800 | ― | ― | ― | 900 |
| PSIR | ― | ― | ― | ― | no |
| MTC | no | no | no | no | no |
| T2prep | ― | ― | ― | ― | no |
| Custom prepulse | ― | no | no | no | no |
| MDME | ― | no | no | no | no |
| Diffusion mode | ― | no | no | no | no |
| T1 mapping | ― | no | no | no | no |
| Transmit channels | ― | both | both | both | both |
| SAR mode | high | high | high | high | high |
| B1 mode | default | user defined | user defined | user defined | default |
| amplitude (uT) | ― | 11.5 | 11.5 | 11.5 | ― |
| SAR allow first level | yes | no | no | no | yes |
| Patient pregnancy | ― | yes | yes | yes | 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 | high | high | high | high |
| Gradient mode | default | maximum | maximum | maximum | default |
| SofTone mode | no | no | no | no | no |
Motion
| Scan Description | Survey | AXIAL TOF Venogram Pre |
CORONAL TOF Venogram Pre |
AXIAL TOF Venogram +Gd |
AXIAL MPRAGE Venogram +Gd |
|---|---|---|---|---|---|
| Cardiac synchronization | no | no | no | no | no |
| Heart rate > 250 bpm | ― | no | no | no | no |
| Respiratory compensation | no | no | no | no | no |
| Navigator respiratory comp | ― | no | no | no | no |
| Flow compensation | no | yes | yes | yes | no |
| fMRI echo stabilisation | ― | no | no | no | no |
| Motion smoothing | ― | ― | ― | ― | no |
| NSA | 1 | 1 | 1 | 1 | 1 |
| MRE enable | no | no | no | no | no |
Dynamic Angio
| Scan Description | Survey | AXIAL TOF Venogram Pre |
CORONAL TOF Venogram Pre |
AXIAL TOF Venogram +Gd |
AXIAL MPRAGE Venogram +Gd |
|---|---|---|---|---|---|
| Angio / Contrast enh. | no | inflow | inflow | inflow | no |
| Quantitative flow | ― | no | no | no | no |
| CENTRA | ― | ― | ― | ― | no |
| Manual start | no | no | no | no | no |
| Dynamic study | no | no | no | no | no |
| Arterial Spin labeling | ― | no | no | no | no |
Post Processing
| Scan Description | Survey | AXIAL TOF Venogram Pre |
CORONAL TOF Venogram Pre |
AXIAL TOF Venogram +Gd |
AXIAL MPRAGE Venogram +Gd |
|---|---|---|---|---|---|
| Preparation phases | auto | auto | auto | auto | auto |
| Interactive F0 | no | no | no | no | no |
| Quick Survey | default | default | default | default | default |
| SmartPlan survey | ― | no | no | no | no |
| B0 field map | ― | no | no | no | no |
| B1 field map | ― | no | no | no | no |
| MIP/MPR | no | MIP | MIP | MIP | no |
| protocol | ― | compose | compose | compose | ― |
| SWIp | ― | no | no | no | no |
| Images | M, no, no, no | M, (3) no | M, (3) no | M, (3) no | M, (3) no |
| Autoview image | M | M | M | M | M |
| Calculated images | no, no, no, no | (4) no | (4) no | (4) no | (4) no |
| Reference tissue | White matter | Grey matter | Grey matter | Grey matter | White matter |
| Recon compression | No | No | No | No | No |
| Preset window contrast | soft | soft | soft | soft | soft |
| Reconstruction mode | immediate | real time | real time | real time | immediate |
| Save raw data | no | no | no | no | no |
| Hardcopy protocol | no | no | no | no | no |
| Image filter | system default | system default | system default | system default | system default |
| Uniformity correction | no | no | no | no | no |
| Geometry correction | default | default | default | default | default |
| Elliptical k-space shutter | ― | ― | ― | ― | default |
| Free rotatable | no | no | no | no | no |