To understand hearing loss, we must know some about the way we hear. We hear in two ways: by conduction of sound energy; and via neural pathways to the brain leading from our cochlea.
Middle Ear Prostheses, Significance of Magnetic Resonance Imaging,
Leon JA, Gabriele OF, Magnetic Resonance Imaging, 5: 405-6
Metallic Otologic Implants: in vitro Assessment of Ferromagnetism at 1.5T,
Shellock FG, Schatz CJ, American Journal of Neuroradiology, 12; 279-281, 1991
The Effect of Nuclear Magnetic Resonance Imaging on Metallic Middle Ear Prosthesis,
Mattucci KF, Setzen M, Hyman R, Chaturvedi G., Otolaryngology Head & Neck Surg, 94: 441-3, 1986
Further Studies on the Effects of Magnetic Imaging on Middle Ear Implants,
Applebaum EL, Valvassori GE, Am Otology, Rhinology, Laryngology, 99: 801-4, 1990
Caution should be taken with all metal alloy implants in magnetic fields over 1.5T as the effects from more than 1.5T are currently being studied. Image artifacts should always be taken into consideration with alternative scanning modalities, like CT scanning available.