missile effect

missile effect

A term referring to the ability of an MRI scanner to dangerously attract ferromagnetic iron-based materials—which are core structural components of fire extinguisher, gas cylinders, carts, wheelchairs, floor polishers, gurneys and hospital beds—due to the MR scanner’s extremely high-strength magnets. The ferromagnetic nature of materials should be identified before being brought into the MRI suite, as all such ferromagnetic projectile incidents have the ability to cause injury.
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The following types of injury can and have occurred during the MRI scanning process: "Missile effect" or "projectile" injury in which ferromagnetic objects (those having magnetic properties) such as ink pens, wheelchairs, and oxygen canisters are pulled into the MRI scanner at rapid velocity.

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