Cranial bone flap fixation clamps: compatibility at MR imaging.
Metallic cranial bone flap fixation clamps were tested for compatibility at 1.5-T magnetic resonance (MR) imaging with standardized techniques. There was no magnetic field attraction, heating was minor, and artifacts involved a relatively small signal void. These data indicate that bone flap fixation clamps will not present risks to patients undergoing MR imaging procedures with MR systems of 1.5 T or less.
Shellock
F G
FG
Department of Radiology, School of Medicine, University of Southern California, Los Angeles, USA.
Shellock
V J
VJ
D016477:Artifacts; D005290:Ferric Compounds; D005547:Foreign Bodies / Q000175:diagnosis*; D006358:Hot Temperature; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000295:instrumentation / Q000379:methods; D008280:Magnetics; D019047:Phantoms, Imaging; D011897:Random Allocation; D012886:Skull / Q000473:pathology* / Q000601:surgery*; D013524:Surgical Flaps; D013525:Surgical Instruments
D005290:Ferric Compounds; C001215:ferrite