Absolute Contraindications to MRI include:
- Pulmonary artery monitoring catheters and temporary transvenous pacing leads
- Intra-aortic balloon pumps
- Left and right ventricular assist devices
- Epicardial leads, retained transvenous leads, fractured leads
- Ferromagnetic vascular clips
- Metallic foreign body (i.e. shrapnel, metal splinters, welding splinters, bullets, grenade fragments)
- Spinal cord neurostimulators
- Claustrophobia
- Body piercings
- Vascular access port
- Implants (i.e. insulin pump, prostheses)
Relative contraindications, (those that depend on the center/experience/location of the MRI sequences obtained/exact type of device/Tesla of the MRI):
- Cochlear implants
- Intrauterine contraceptive devices
- Implanted pacemakers and ICDs are considered a strong relative contraindication
- Intracranial endovascular clips must have the neurosurgeon’s approval first
- Endovascular stent grafts depending on the material
- Tattoo/ permanent make up
- Renal insufficiency, if expecting to give contrast
- Tissue expander (i.e. breast)
- Cardiac valves
- Joint replacement
- IVC filters (early within 6 weeks of implantation)
References
- Dill T. Contraindications to magnetic resonance imaging: non-invasive imaging. Heart. 2008 Jul;94(7):943-8. Link
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