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Metallic postoperative artifacts on cervical MR
M T Yoshino1, O M Temeltas, L P Carter
1Section of Neuroradiology, University of Arizona, Tucson 85724.
AJNR. American Journal of Neuroradiology
|May 1, 1993
Abstract:
Spectroscopy of cervical diskectomy specimens obtained from sheep demonstrated that metallic susceptibility artifacts are produced by microscopic amounts of nickel, copper, and zinc. Sufficient quantities of metals to produce artifacts are deposited only by contact of metal drill bits and suction tips. If these instruments do not come in contact during surgery, susceptibility artifacts are not observed.