– Surgical aneurysm clips
– Shrapnel
– Intraorbital metallic structures
– Neurostimulator
– Implanted pumps (i.e., Insulin pumps)
– Steel pins from root canals
– Metal rods, plates or screws in the body or mouth
– Ear implants (certain cochlear implants)
– Metal rods, plates or screws in the body or mouth
– Previous surgery (if metal was left in the body)
– Hearing aids (should be removed before scanning)
– Braces (causes severe artifact)
– Tattoos (may have metallic paint)
– Piercings (may have metallic ink)
– Movement disorders (i.e., ticks, restless legs,
etc., any condition that may cause movement)
Other Considerations Which May Rule Out a Subject
– Vision /
Hearing problems
– Problems using response devices
Consideration
Which WILL Rule Out a Subject
MEG staff will determine if this consideration will
make a subject ineligible for participation at the
time of the scheduled scan.
– Head size (subject’s head must be able
to fit in the inside dimensions of the helmet)
return
to subject requirments menu
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