Middle ear prosthesis: significance in magnetic resonance imaging.
The Armstrong model of the Schuknecht gel foam and wire prosthesis was tested in the magnetic field of a 1.5 Tesla magnet. The wire component of the prosthesis was found to be non-magnetic. Patients with this prosthesis can therefore undergo MRI examination safely. Two previous articles from the non radiologic literature concerning the magnetic properties of metallic middle ear prostheses are reviewed.
West Virginia University Medical Center, Department of Radiology, Morgantown 26506.
J A
JA
Leon
O F
OF
Gabriele
D000368:Aged; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D009998:Ossicular Prosthesis