| | DIRP Magnetoencephalography Core Facility - Subject Requirements
| Subject
Screening |
| • |
In
addition, certain physical conditions may create excessive
artifact in recordings which may also produce inferior
data. These subjects, therefore, may not be an
optimal candidate for participation in a MEG scan. |
| • |
Users
may use the MEG Subject Screening Questionnaire (Note: some
of the questions on this form are only relevant to NIMH
normal volunteers) or their own screening instrument
or procedures as a quality control device to screen
subjects for participation in a MEG research study.
The Handedness Questionnaire is also available for use as a
screening device. |
| • |
MEG
staff will be available upon request to assist users
with the screening device to determine if there are
any contraindications that might make a subject sub-optimal
or ineligible for participation. However,
it will be the responsibility of the PI to screen subjects
for the below listed contraindications. |
| • |
Conditions
That will Rule Out a Subject Due To Excessive
Artifact |
| |
– 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
|
| Subject
Pre-Scan Instruction |
| • |
It
will be the responsibility of the PI to give subjects
instructions prior to any scheduled MEG procedure. |
| • |
Subjects
should not to wear these items as they may generate
excessive artifact: |
| |
–
Bras with underwires
– Makeup (mascara, eyeliner, eye shadow)
– Clothing containing metallic (shiny) threads
or glitter
– Metal on clothing (i.e., metal buttons, snaps
or trimming) |
| • |
Subject
should not take metallic or magnetic items into the
Magnetically Shielded Room (MSR): |
| |
Anyone
entering the MSR must first "de-metal" (remove
any metal objects and empty pockets).
These include such items as:
Belts, Keys, Watches, Rings or other jewelry, Coins,
Eyeglasses, Cell phones, Pagers, Small metal objects
such as hair pins, staples, paper clips, safety pins,
etc., Credit cards
*If there is any question about whether an object is
magnetic do not take the object inside of the MSR. |
| • |
Do
not take shoes into the MSR. Remove your shoes
before entering the MSR to prevent any magnetic dust
from getting into the room. |
| • |
Any
subject who arrives unprepared i.e., have magnetic parts
on their clothing that cannot be easily removed, may
be issued non magnetic clothing which will be provided
by staff. |
return to subject requirments menu
|
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