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Internal Auditory Canal 1.5T

Philips Healthcare – MR Gadopiclenol (VUEWAY®) Protocols

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Instructions And Patient Preparation

Instructions
• Change patient into hospital issued gown and pants
• 20- to 22-gauge IV access preferred
Position
Supine, head first
Coil
15 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 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		 Source
DTI		 Cisternogram AXIAL
T1 +C		 CORONAL
T1 mDIXON +C
Fat Sat
  View Image View Image   View Image View Image View Image View Image    
Total scan duration 00:45.0 02:26.6 03:30.0 01:20.0 01:10.4 02:08.4 04:42.0 01:20.0 02:20.7
Rel. SNR 1 1 1.0 1 1 1 1 1 1
Act. TR (ms) 15000 5237 — 400 400 7136 1200 400 440
Act. TR/TI (ms) — — 10000 / 2800 — — — — — —
Act. TE (ms) 152 100 140 15 10 74 159 10 15
ACQ matrix M x P 212 x 170 300 x 248 224 x 225 252 x 224 252 x 215 112 x 111 320 x 300 252 x 224 232 x 204
ACQ voxel MPS (mm) 1.18 / 1.47 / 5.00 0.60 / 0.73 / 3.00 0.80 / 0.80 / 3.00 0.60 / 0.67 / 3.00 0.60 / 0.70 / 3.00 2.00 / 2.02 / 3.00 0.50 / 0.53 / 1.00 0.60 / 0.67 / 3.00 0.65 / 0.74 / 3.00
REC voxel MPS (mm) 0.98 / 0.98 / 5.00 0.42 / 0.42 / 3.00 0.38 / 0.38 / 3.00 0.29 / 0.29 / 3.00 0.29 / 0.29 / 3.00 1.00 / 1.00 / 3.00 0.31 / 0.31 / 0.50 0.38 / 0.38 / 3.00 0.29 / 0.29 / 3.00
Scan percentage (%) 80 83 100 89 85 99 94 89 88
Packages 3 1 3 2 2 1 — 2 2
Min. slice gap (mm) 0 0 3 3 3 0 — 3 3
Act. slice gap (mm) — 0.3 0.3 0.3 0.3 — -0.5 0.3 0.3
Optimal slices — — 18 — — — — — —
Max. slices — — 27 — — — — — —
EPI factor — — — — — 111 — — —
WFS (pix) / BW (Hz) 0.449 / 483.3 1.402 / 154.9 0.835 / 260.2 0.972 / 223.4 0.981 / 221.4 20.105 / 10.8 0.492 / 441.4 0.972 / 223.4 0.516 / 420.9
BW in EPI freq. dir. (Hz) — — — — — 1579 — — —
TSE factor 119 — — — — — — — —
TSE es / shot (ms) 4.4 / 521 12.5 / 188 6.8 / 273 8.0 / 40 8.0 / 40 — 8.8 / 318 8.0 / 40 9.0 / 45
TEeff / TEequiv (ms) — 100 / 82 140 / 105 — — — 159 / 141 — —
Min. TR (ms) 8456 5237 — 393 393 — 331 393 440
Min. TR/TI (ms) — — 5827 / 50 — — — — — —
Local torso SAR < 56 % < 37 % < 14 % < 87 % < 87 % < 11 % < 19 % < 87 % < 79 %
Whole body SAR / level < 1.4 W/kg / normal < 0.9 W/kg / normal < 0.4 W/kg / normal < 2.2 W/kg / 1st level < 2.2 W/kg / 1st level < 0.3 W/kg / normal < 0.5 W/kg / normal < 2.2 W/kg / 1st level < 2.0 W/kg / normal
SED < 0.1 kJ/kg < 0.1 kJ/kg < 0.1 kJ/kg < 0.2 kJ/kg < 0.2 kJ/kg 0.0 kJ/kg < 0.1 kJ/kg < 0.2 kJ/kg < 0.3 kJ/kg
Max B1+rms 3.18 uT 2.56 uT 1.60 uT 3.96 uT 3.96 uT 1.39 uT 1.83 uT 3.96 uT 3.78 uT
PNS / level 54 % / normal 34 % / normal 47 % / normal 41 % / normal 43 % / normal 60 % / normal 57 % / normal 43 % / normal 43 % / normal
dB/dt 50.8 T/s 34.0 T/s 41.3 T/s 41.8 T/s 40.2 T/s 56.4 T/s 51.1 T/s 40.5 T/s 43.5 T/s
Sound Pressure Level (dB) 16.6 7.3 7.7 11.2 10.5 10.1 11.6 10.6 10.8

Geometry

Scan Description IACs
LOC		 AXIAL
T2 Thin		 AXIAL
T2 FLAIR Thin		 CORONAL
T1		 AXIAL
T1		 Source
DTI		 Cisternogram AXIAL
T1 +C		 CORONAL
T1 mDIXON +C
Fat Sat
                   
SmartSelect yes yes yes yes yes yes yes yes yes
Uniformity CLEAR CLEAR CLEAR CLEAR CLEAR CLEAR CLEAR CLEAR CLEAR
FOV AP (mm) 250 180 180 53 150 224 160 150 53
      FOV (mm) 5, 53, 49, (17) 53 — — — — — — — —
FOV FH (mm) 250 86 86 150 53 150 55 53 150
FOV RL (mm) — 180 180 150 150 224 160 150 150
ACQ voxel size AP (mm) 1.2 0.6 0.8 — 0.6 2 0.5 0.6 —
ACQ voxel size FH (mm) 1.5 — — 0.6 — — 1 — 0.6
ACQ voxel size RL (mm) — 0.7 0.8 0.6 0.6 2 0.5 0.6 0.7
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 0.4 — 0.29 1 0.3 0.4 —
Recon voxel size FH (mm) 1 — — 0.3 — — 0.5 — 0.3
Recon voxel size RL (mm) — 0.4 0.4 0.3 0.3 1 0.3 0.4 0.3
Fold-over suppression no oversampling oversampling oversampling oversampling no no oversampling oversampling
      A (mm) 50 — — — — — — — —
      L (mm) — 5 5 20 10 — — 20 20
      P (mm) 50 — — — — — — — —
      R (mm) — 5 5 20 10 — — 20 20
Slice oversampling — — — — — — default — —
Reconstruction matrix 256 432 480 512 512 224 512 400 512
SENSE no no no no no no no no yes
P reduction (RL) — — — — — — — — 2
CS-SENSE no yes yes yes yes no yes yes no
reduction — 2 2 1.8 1.8 — 3.5 1.8 —
denoising — system default system default system default system default — system default system default —
k-t Acceleration no no no no no no no no no
Stacks 3 1 1 1 1 1 1 1 1
      type (20) parallel parallel parallel parallel parallel parallel 110 parallel parallel
Slices 1, 9, 5, (17) 9 26 26 16 16 50 — 16 16
      slice gap user defined default default default default user defined — default default
      gap (mm) 6, 1, 6, (17) 1 — — — — 0 — — —
Slice orientation sagittal, coronal, transverse, (17) coronal transverse transverse coronal transverse transverse transverse transverse coronal
Fold-over direction AP, RL, AP, (17) RL RL RL RL RL AP RL RL RL
Fat shift direction (2) F, L, (17) F P P F P P P P F
      radial axis AP, RL, AP, (17) RL — — — — — — — —
      radial angle (deg) (20) 0 — — — — — — — —
Stacks as Packages yes — — — — — — — —
Multi-chunk — — — — — — no — —
Minimum number of Packages 1 1 3 1 1 1 — 1 1
Slice scan order default default default default default default — default default
Stack scan order ascend — — — — — — — —
O-MAR no no no no no — no no no
Move table per stack no — — — — — — — —
Large table movement 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
REST slabs 0 0 0 0 0 0 1 0 0
      type — — — — — — parallel — —
      thickness (mm) — — — — — — 40 — —
      position — — — — — — feet — —
      gap — — — — — — default — —
Interactive positioning no no no no no no no no no
Patient position 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
Patient orientation supine supine supine supine supine supine supine supine supine
Patient body orientation supine supine supine supine supine supine supine supine supine

Contrast

Scan Description SURVEY AXIALT2 Thin AXIALT2 FLAIR Thin CORONALT1 AXIALT1 SourceDTI Cisternogram AXIALT1 +C CORONALT1 mDIXON +CFat Sat
Scan type Imaging Imaging Imaging Imaging Imaging Imaging Imaging Imaging Imaging Scan type
Scan mode MS MS MS MS MS MS 3D MS MS Scan mode
Modified SE no no — no no no no no no Modified SE
Acquisition mode cartesian cartesian cartesian cartesian cartesian cartesian cartesian cartesian cartesian Acquisition mode
Fast Imaging mode TSE TSE TSE TSE TSE EPI TSE TSE TSE Fast Imaging mode
3D VIEW — — — — — — no — — 3D VIEW
TSE factor — 15 40 5 5 — 35 5 5 TSE factor
TE spacing — — — user defined user defined — — user defined user defined TE spacing
Echoes 1 1 1 1 1 1 1 1 1 Echoes
partial echo no no no no no no no no no partial echo
TE shortest user defined user defined user defined user defined user defined shortest user defined user defined TE
Refocusing control — — constant — — — — — — Refocusing control
Flip angle (deg) 90 90 — 90 90 90 90 90 90 Flip angle (deg)
Refocusing control — — constant — — — — — — Refocusing control
TR user defined range user defined range range shortest user defined range range TR
Halfscan yes no no no no yes — no no Halfscan
Water-fat shift maximum maximum maximum maximum maximum minimum maximum maximum maximum Water-fat shift
IR delay (ms) — — 2800 — — — — — — IR delay (ms)
Shim default default default default default auto default default default Shim
mDIXON no no no no no no no no yes mDIXON
Fat suppression no no SPIR no no SPIR no no no Fat suppression
Water suppression no no no no no no no no no Water suppression
BB pulse — — — — — — no — — BB pulse
MTC no no no no no no no no no MTC
Diffusion mode no no no no no DTI no no no Diffusion mode
Diffusion mode no no no no no DTI no no no Diffusion mode
T1 mapping no no no no no no no no no T1 mapping
SAR mode high high moderate high high high high high high SAR mode
B1 mode default default default default default default default default default B1 mode
SAR allow first level yes yes yes yes yes yes no yes yes SAR allow first level
Patient pregnancy no no no no no no no no no Patient pregnancy
Patient WB SAR [W/kg] — — — — — — — — — Patient WB SAR [W/kg]
Patient Head SAR [W/kg] — — — — — — — — — Patient Head SAR [W/kg]
Patient max. dB/dt [T/s] — — — — — — — — — Patient max. dB/dt [T/s]
Max slewrate [T/m/s] — — — — — — — — — Max slewrate [T/m/s]
Max. B1+rms [uT] — — — — — — — — — Max. B1+rms [uT]
PNS mode low low low low low low low low low PNS mode
Gradient mode default default default default default default default default default Gradient mode
SofTone mode no no no no no no no no no SofTone mode

Motion

Scan Description IACs
LOC		 AXIAL
T2 Thin		 AXIAL
T2 FLAIR Thin		 CORONAL
T1		 AXIAL
T1		 Source
DTI		 Cisternogram AXIAL
T1 +C		 CORONAL
T1 mDIXON +C
Fat Sat
                   
Cardiac synchronization no no no no no no no no no
Respiratory compensation no no no no no no no no no
Navigator respiratory comp no no no no no no no no no
Flow compensation 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 — no no no
NSA 1 3 2 3 3 1 1 3 3
SMART — no no no no — — no no
MRE enable no no no no no no no no no
CENTRA — — — — — — no — —

Dynamic Angio

Scan Description IACs
LOC		 AXIAL
T2 Thin		 AXIAL
FLAIR Thin		 CORONAL
T1		 AXIAL
T1		 Source
DTI		 Cisternogram AXIAL
T1 +C		 CORONAL
T1 mDIXON +C
Fat Sat
                   
Manual start no no no no no no no no no
Dynamic study no no no no no no no no no
Arterial Spin labeling no no no no no no no no no

Post Processing

Scan Description IACs
LOC		 AXIAL
T2 Thin		 AXIAL
FLAIR Thin		 CORONAL
T1		 AXIAL
T1		 Source
DTI		 Cisternogram AXIAL
T1 +C		 CORONAL
T1 mDIXON +C
Fat Sat
                   
Preparation phases auto auto auto auto auto auto auto auto auto
Interactive F0 no no no no no no no no no
Quick Survey default default default default default default default default default
MIP/MPR no no no no no no no no no
mDIXON images — — — — — — — — IP, water, (4) 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 —
Autoview image M M M M M M M M —
Calculated images (4) no (4) no — (4) no (4) no (4) no (4) no (4) no —
Reference tissue White matter White matter White matter White matter White matter White matter White matter White matter White matter
Recon compression No No No No No No No No No
Preset window contrast soft soft soft soft soft soft soft soft soft
Reconstruction mode immediate immediate real time real time real time immediate immediate real time real time
Save raw data no no no no no no no no no
Hardcopy protocol 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
Uniformity correction no no no no no no no no no
Geometry correction default default default default default default default default default
Elliptical k-space shutter — — — — — — default — —
Free rotatable no no no no no 0 no no no
IF_info_seperator 1634755923 1634755923 0 0 0 — 1634755923 0 0