Compact whole-body MRI scanner under consideration for ISS
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MRI images of knee and wrist joints taken using the TRASE RF phase gradient method (Photo: University of Saskatchewan)
The Sarty group's prototype Halbach cylinder, used mainly to study shimming techniques for improving the homogeneity of the magnetic field in the cylinder bore (Photo: University of Saskatchewan)
A two-dimensional set of RF phase gradient coils for implementation of TRASE spatial structure encoding (Photo: University of Saskatchewan)
Schematic of a refrigerator magnet, showing the rotating direction of the magnetic domains and the one-sided magnetic field which is produced therefrom
Computer simulation of the magnetic field of a Halbach cylinder composed of four pairs of permanent magnets, each pair having different magnetic orientations than the other pairs (Image: Zureks)
Artist's concept of the Compact MRI being developed to support long-duration spaceflight (Image: University of Saskatchewan)
A three-Tesla conventional MRI scanner, the 3T Achieva by Philips (Photo: Kasuga Huang)
Generation of weak RF spin-flip radiation during MRI imaging (Image: Brian Dodson)
The Canadarm2 is the main external manipulation arm for the ISS (Photo: NASA)
An MRI aboard the ISS would be smaller and lighter than its Earth-bound counterparts like this one (Photo: Levent Konuk/Shutterstock)
Article Summary
A multitalented group of engineers led by Professor Gordon Sarty is developing a compact Magnetic Resonance Imaging (MRI) scanner for spaceflight duty. The intent is to support space medicine research and astronaut health monitoring required for longer and more remote space missions. The first post of duty would be on the International Space Station (ISS), to monitor physiological changes occurring during long-duration missions. Sarty is Acting Chair of Biomedical Engineering at the University of Saskatchewan.
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