The world’s strongest MRI machines are pushing human imaging to new limits – Nature

Image credit: Centre for Advanced Imaging, The University of Queensland

On a cold morning in Minneapolis last December, a man walked into a research centre to venture where only pigs had gone before: into the strongest magnetic resonance imaging (MRI) machine built to scan the human body. First, he changed into a hospital gown, and researchers made sure he had no metal on his body: no piercings, rings, metal implants or pacemakers. Any metal could be ripped out by the immensely powerful, 10.5-tesla magnet — weighing almost 3 times more than a Boeing 737 aeroplane and a full 50% more powerful than the strongest magnets approved for clinical use. “This is a window we’ve just never had in the intact human brain,” says Ravi Menon.