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Study: MRI scan technicians can experience negative neurocognitive effects

MRI workers experience transient neurocognitive effects (News Medical):

“Individuals working in the vicinity of magnetic resonance imaging (MRI) machines may experience transient neurocognitive effects when moving their heads, research demonstrates…Study participants who completed standardized head movements while inside the stray static magnetic field of a 7 Tesla (T) MRI system experienced a temporary decrease in attention, concentration, and visuospatial orientation that did not occur in sham conditions…The findings add to evidence that MRI static fields – which are present once the machine is switched on even when imaging is not underway – can cause sensory symptoms such as nausea, dizziness, and a metallic taste in the mouth.”

Study: Effects of magnetic stray fields from a 7?Tesla MRI scanner on neurocognition: a double-blind randomised crossover study (Occupational Environmental Medicine)

  • Objective: This study characterises neurocognitive domains that are affected by movement-induced time-varying magnetic fields (TVMF) within a static magnetic stray field (SMF) of a 7?Tesla (T) MRI scanner.
  • Conclusion: Neurocognitive functioning is modulated when exposed to movement-induced TVMF within an SMF of a 7 T MRI scanner. Domains that were affected include attention/concentration and visuospatial orientation. Further studies are needed to better understand the mechanisms and possible practical safety and health implications of these acute neurocognitive effects.

Source of pic: BigStockPhoto

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