Keywords: Hybrid & Novel Systems Technology, Hybrid & Novel Systems Technology, Artifacts, Brain, Motion Correction
Motivation: MRI is largely limited to scenarios involving small-scale bodily movements to minimize artifacts and field-induced physiological effects.
Goal(s): We are developing a moving MRI system where the magnet and subject’s head remain stationary with respect to each other during large-scale motion.
Approach: Utilizing a compact, dry 1.5T magnet, we built an apparatus that tilted the entire magnet assembly, including the cold head, gradient/shim/RF coils, and the subject, up and down during scanning.
Results: We demonstrated the ability to scan phantoms and live animals while the magnet is in motion and to correct for imaging artifacts caused by tilting the magnet.
Impact: Our proof-of-concept prototype moving MRI system supports the future viability of developing a human-scale moving MRI system, which has the potential to advance studies in vestibular research, traumatic brain injury, and brain-behavior interactions, among other areas.
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