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We generally cannot scan patients if any of the following contraindications are present.  All patients with metallic implants are individually evaluated prior to MRI.

1. Central nervous system aneurysm clips
2. Implanted neural stimulator
3. Implanted cardiac pacemaker or defibrillator
4. Cochlear implant
5. Ocular foreign body (e.g. metal shavings)
6. Other implanted medical devices: (e.g. drug infusion ports)
7. Insulin pump
8. Metal shrapnel or bullet.
9. Pregnant women (Patients who are uncertain as to whether they are pregnant will be required to have a screening urine or blood pregnancy test). 

Cardiac MRI is safe with coronary stents, joint replacements, ASD/PFO closure devices, sternal wires, and most prosthetic heart vales.