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Pediatric Spine Optional Add-On 1.5T

Siemens Healthineers – MR Gadopiclenol (VUEWAY®) Protocols

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Instructions And Patient Preparation

Instructions
Optional spine sequences added based on clinical indication. Radiologist to prescribe levels of coverage.
Position
Head first supine
Coil
Head coil, Spine coil, and Body 18 (anterior)
Patient Preparation
Landmark per department pediatric protocol — pending sign-off.
Add-On Sequence Indications and Coverage
• Embryonal Tumor or High-Grade Glioma — SAG RESOLVE DWI C SPINE, MID AND LOWER.
• Osseous/Paravertebral/Vertebral Tumor — Pre contrast TRAN T1 FLAIR, TRAN T2 TSE FS and post contrast TRAN T1 FLAIR FS. 3mm slices used for Cervical Spine and 4mm used for Thoracic and Lumbar Spine. Radiologist to prescribe levels of coverage.

Contrast Agent Parameters

Contrast Agent Dose Injection Rate Dose Timing Method and Scan Delay
Gadopiclenol (VUEWAY) Per department pediatric contrast protocol — pending sign-off Hand Bolus or Power Injection Per department pediatric contrast protocol — pending technologist/radiologist sign-off.
Comments • These are optional sequences added per clinical indication.
• Use minimal dose for patients with a GFR <60 mL/sec
• Report agent administered and dose

Imaging Parameters

Scan Description SAG rDWI C SPINE SAG rDWI MID SAG rDWI LOWER TRAN T1 FLAIR 3MM Post
TRAN T1 FLAIR FS 3MM		 TRAN T2 TSE FS 3MM TRAN T1 FLAIR 4MM Post
TRAN T1 FLAIR FS 4MM		 TRAN T2 TSE FS 4MM
  View Image View Image View Image View Image View Image View Image View Image View Image View Image
Clinical Indication Embryonal Tumor or High-Grade Glioma Embryonal Tumor or High-Grade Glioma Embryonal Tumor or High-Grade Glioma Osseous/Paravertebral/Vertebral Tumor Osseous/Paravertebral/Vertebral Tumor Osseous/Paravertebral/Vertebral Tumor Osseous/Paravertebral/Vertebral Tumor Osseous/Paravertebral/Vertebral Tumor Osseous/Paravertebral/Vertebral Tumor
Sequence Name resolve resolve resolve tir tir tse_rs tir tir tse_rs
Mode Interleaved Interleaved Interleaved Interleaved Interleaved Interleaved Interleaved Interleaved Interleaved
PAT Mode ― ― ― GRAPPA GRAPPA GRAPPA GRAPPA GRAPPA GRAPPA
Dimension 2D 2D 2D 2D 2D 2D 2D 2D 2D
Acceleration Factor PE 2 2 2 2 2 2 2 2 2
Acceleration Factor 3D ― ― ― ― ― ― ― ― ―

Scan Parameters

Scan Description SAG rDWI C SPINE SAG rDWI MID SAG rDWI LOWER TRAN T1 FLAIR 3MM Post
TRAN T1 FLAIR FS 3MM		 TRAN T2 TSE FS 3MM TRAN T1 FLAIR 4MM Post
TRAN T1 FLAIR FS 4MM		 TRAN T2 TSE FS 4MM
TR 2100.0 ms 2660.0 ms 2660.0 ms 2660.0 ms 2960.0 ms 4400.0 ms 2500.0 ms 2920.0 ms 4400.0 ms
TE 59 ms / 91 ms 77 ms / 131 ms 77 ms / 131 ms 6.80 ms 6.80 ms 60.00 ms 6.80 ms 6.80 ms 57.00 ms
TI ― ― ― 1000 ms 1000 ms ― 959 ms 959 ms ―
Flip Angle 180 deg 180 deg 180 deg 150 deg / 90 deg 150 deg / 90 deg 150 deg / 90 deg 150 deg / 90 deg 150 deg / 90 deg 150 deg / 90 deg
Turbo Factor ― ― ― 6 6 15 6 6 15
Bandwidth 877 Hz/Px 775 Hz/Px 775 Hz/Px 241 Hz/Px 241 Hz/Px 182 Hz/Px 241 Hz/Px 241 Hz/Px 182 Hz/Px
EPI Factor 68 124 124 ― ― ― ― ― ―
Fat Saturation Mode Strong Strong Strong ― Weak Weak ― Weak Weak
Fat Suppression Fat Saturation Fat Saturation Fat Saturation Standard Fat Saturation Fat Saturation Standard Fat Saturation Fat Saturation
Gradient Mode Fast Fast Fast Fast Fast Fast Fast Fast Fast
RF Pulse Type Normal Normal Normal Fast Fast Normal Fast Fast Normal
Asymmetric Echo ― ― ― ― ― ― ― ― ―

Acquisition Parameters

Scan Description SAG rDWI C SPINE SAG rDWI MID SAG rDWI LOWER TRAN T1 FLAIR 3MM Post
TRAN T1 FLAIR FS 3MM		 TRAN T2 TSE FS 3MM TRAN T1 FLAIR 4MM Post
TRAN T1 FLAIR FS 4MM		 TRAN T2 TSE FS 4MM
Base Resolution 114 248 248 128 128 320 128 128 320
Phase Resolution 100 % 100 % 100 % 85 % 85 % 95 % 85 % 85 % 95 %
Slice Resolution ― ― ― ― ― ― ― ― ―
Averages ― ― ― 1 1 2 1 1 2
Concatenations 1 1 1 2 2 2 3 3 2
b-value 0 s/mm²/800 s/mm² 0 s/mm²/800 s/mm² 0 s/mm²/800 s/mm² ― ― ― ― ― ―
FoV Read 152 mm 300 mm 300 mm 120 mm 120 mm 190 mm 120 mm 120 mm 190 mm
FoV Phase 59.6 % 50.0 % 50.0 % 200.0 % 200.0 % 84.4 % 200.0 % 200.0 % 84.4 %
Phase Encoding Dir. A >> P A >> P A >> P R >> L R >> L A >> P R >> L R >> L A >> P
Phase Oversampling 100 % 100 % 100 % 65 % 65 % 50 % 50 % 50 % 50 %
Slice Oversampling ― ― ― ― ― ― ― ― ―
Phase Partial Fourier Off Off Off Off Off Off Off Off Off
Slice Partial Fourier ― ― ― ― ― ― ― ― ―
Flow Compensation ― ― ― None None Slice None None Slice

Scanning Range

Scan Description SAG rDWI C SPINE SAG rDWI MID SAG rDWI LOWER TRAN T1 FLAIR 3MM Post
TRAN T1 FLAIR FS 3MM		 TRAN T2 TSE FS 3MM TRAN T1 FLAIR 4MM Post
TRAN T1 FLAIR FS 4MM		 TRAN T2 TSE FS 4MM
Elliptical Filter ― ― ― On On On On On On
Normalize Prescan Prescan Prescan Prescan Prescan Prescan Prescan Prescan Prescan
Distortion Correction 2D 2D 2D 2D 2D 2D 2D 2D 2D
Slice Thickness 3.0 mm 3.0 mm 3.0 mm 3.0 mm 3.0 mm 3.0 mm 4.0 mm 4.0 mm 4.0 mm
Distance Factor 0% 0% 0% 0% 0% 0% 0% 0% 0%
Slices 15 15 15 41 41 41 59 59 41
Acquisition Time 1:23 min 1:45 min 1:45 min 2:57 min 3:23 min 4:08 min 3:54 min 4:42 min 4:08 min