title: Postoperative magnetic resonance imaging artifacts. Report of three cases.
abstract: Artifacts are occasionally encountered on magnetic resonance imaging after operation. These may be due to minute metallic particles from neurosurgical instruments. Particles not detectable on plain x-ray films or computerized tomography scans may cause local change of magnetic resonance activity, resulting in a deceptive magnetic resonance appearance. Three illustrative case reports are presented.
authors: Department of Neurosurgery, University of Köln, West Germany.
authors: R P
authors: RP
authors: Firsching
authors: W
authors: W
authors: Heindel
authors: R I
authors: RI
authors: Ernestus
authors: R A
authors: RA
authors: Frowein
authors: J
authors: J
authors: Bunke
mesh_terms: D000328:Adult; D001921:Brain / Q000473:pathology; D004560:Electricity; D005260:Female; D005547:Foreign Bodies / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008670:Metals; D008875:Middle Aged; D009493:Neurosurgery / Q000295:instrumentation / Q000379:methods*; D011184:Postoperative Period; D013116:Spinal Cord / Q000473:pathology
chemical_list: D008670:Metals