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Potential Hazards of Magnetic Resonance Imagers to Emergency Medical Service Helicopter Operations
SYSTEMS CONTROL TECHNOLOGY INC ARLINGTON VA
Pagination or Media Count:
In recent years there have been several incidents with helicopters where magnetic resonance imagers MRIs have interfered with the operation of magnetic sensors such as compasses and directional gyroscopes. The magnetic fields generated by the MRI magnet causes magnetic sensors to give aberrant readings. This report documents the characteristics of MRIs and how they operate. It discusses relevant federal regulations of MRI and all magnetic effects and hazards involved with operating helicopters in a strong static magnetic field for both personnel and equipment. Finally, the report makes recommendations for safe helicopter operations in and around MRIs.
APPROVED FOR PUBLIC RELEASE