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.
Leon
J A
JA
West Virginia University Medical Center, Department of Radiology, Morgantown 26506.
Gabriele
O F
OF
D000368:Aged; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D009998:Ossicular Prosthesis