Magnetic Resonance Imaging Artifact Following Acoustic Neurofibroma Surgery : Case Report

概要

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Metallic artifacts in magnetic resonance(MR)imaging occur mostly in patients who have received an implant at surgery.Similar artifacts are now increasingly recognized in patients in whom high-speed drills have been used.A 15-year-old male with neurofibromatosis 2 had undergone excision of acoustic neurofibroma on the left 1.5 years prior to the present admission.MR imaging to evaluate the acoustic neurofibroma on the right showed a metallic artifact at the site of the previous surgery.Computed tomography did not show any evidence of metal debris.The artifact was probably caused by metallic dust or debris from a high-speed drill during the first surgery.We suggest that care should be taken to prevent deposition of such debris in the operative field to prevent this complication.
日本脳神経外科学会の論文
1999-12-15