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don't know. I know that you can't have an MRI with metal in your brain. I heard one of the Docs on tv tonight say that they would need to be removed before she could have an MRI. My husband has a shunt with a magnet in it. He gets MRI's but the shunt needs to be reset with a magnet each time because the MRI's magnet shuts it off.

This is a clip from a blog discussing the same subject. Answer is by a Radiologist:

In addition, it is hard to believe that anyone inserted electrodes, in 1992, that had paramagnetic properties that would preclude an MRI of the brain currently. I doubt that. Most of those devices are titanium or stainless steel, which are unaffected by MRI. Besides, with MRI, in that type of situation, the only reason not to do an MRI is because you are looking for information in the region of the artifact, where there would be distortion of the image.

If the items are not paramagnetic (like iron), there would be no danger and no contraindication to an MRI. Sounds bogus to me.