Contraindications for MR imaging and spectroscopy
Never forget that the magnetic memory of credit and similar cards,
as well as magnetic devices such as tapes, will be erased by MR magnets.
Leave home without them or leave them outside the magnet room.
Absolute Contraindications
electronically, magnetically, and mechanically activated implants:
cardiac pacemakers
ferromagnetic or electronically operated stapedial implants
hemostatic clips (CNS)
metallic splinters in the orbit
Relative Contraindications
electronically, magnetically, and mechanically activated implants:
other pacemakers, e.g.,
- for the carotid sinus;
- insulin pumps and nerve stimulators;
- lead wires or similar wires
non-ferromagnetic stapedial implants
cochlear implants
prosthetic heart valves (in high fields, if dehiscence is suspected)
hemostatic clips (body)
makeup and tattoos
congestive heart failure
pregnancy (claustrophobia)
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