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Table 1: Spinal Cord MR Angiography Protocol
Variable Data
Field strength 1.5T
Coil Synergy spine phased array coil
Pulse sequence 3D fast-gradient recalled echo, with centric k-space filling
TR/TE/FA 6.0 ms/1.7 ms/30°
Directions Frequency-encoding CC; phase-encoding AP; sagittal slices
FOV/RFOV ≤50 cm CC/40%–70% reduction AP
Acquisition time 35-52 seconds per dynamic phase
Contrast administration 0.2–0.3 mmol Gd-DTPA/kg body weight, injected at 3 mL/s
Voxel size ∼0.8 × 0.8 × 1.2 mm
Precontrast Similar acquisition for subtraction
Dynamic phases ≥2
Scan delay Scan delay time of acquisition is set to filling of abdominal aorta, determined by MR fluoroscopy with 2-mL test bolus
Note:—FA indicates flip angle; RFOV, reduced FOV; CC, craniocaudal; AP, anterior-posterior; Gd-DTPA, gadolinium-diethylene-triaminepentaacetic acid.

Variable	Data
Field strength	1.5T
Coil	Synergy spine phased array coil
Pulse sequence	3D fast-gradient recalled echo, with centric k-space filling
TR/TE/FA	6.0 ms/1.7 ms/30°
Directions	Frequency-encoding CC; phase-encoding AP; sagittal slices
FOV/RFOV	≤50 cm CC/40%–70% reduction AP
Acquisition time	35-52 seconds per dynamic phase
Contrast administration	0.2–0.3 mmol Gd-DTPA/kg body weight, injected at 3 mL/s
Voxel size	∼0.8 × 0.8 × 1.2 mm
Precontrast	Similar acquisition for subtraction
Dynamic phases	≥2
Scan delay	Scan delay time of acquisition is set to filling of abdominal aorta, determined by MR fluoroscopy with 2-mL test bolus