Ceramic surgical instruments: ex vivo evaluation of compatibility with MR imaging at 1.5 T.
The purpose of this study was to evaluate the MR compatibility of ceramic instruments. Nine different ceramic instruments were tested with respect to ferromagnetism, heating, and artifacts using previously described techniques. There was no magnetic field attraction, temperature increases were < or = 1 degree C, and artifacts involved a signal void similar to the size and shape of each instrument. The ceramic instruments were demonstrated to be compatible with MR imaging and acceptable for use during intraprocedural MR imaging.
Shellock
F G
FG
Radnet and Future Diagnostics, Inc., Los Angeles, CA 90045, USA.
Shellock
V J
VJ
D016477:Artifacts; D002516:Ceramics; D005290:Ferric Compounds; D006358:Hot Temperature; D008279:Magnetic Resonance Imaging / Q000379:methods; D008280:Magnetics; D008422:Materials Testing / Q000379:methods; D013525:Surgical Instruments
D005290:Ferric Compounds; C001215:ferrite