title: [Intracranial artifact un magnetic resonance caused by embolization of microscopic metallic fragment].
abstract: Magnetic resonance imaging (MRI) artifacts have been described in many articles published in the literature. We present the case of a 72 year old man who was admitted due to left inferior limb weakness. MRI imaging demonstrated an acute right infarction of the right posterior cerebral artery. In the right frontal lobe a metallic artifact was demonstrated as well. The artifact showed a central signal void and it was surrounded by a high signal intensity rim. His aortic valve had been replaced 12 years earlier. This indicates that the artifact is in fact due to a small metallic fragment embolization during cardiac surgery.
authors.affiliation: Servicio de Radiodiagnóstico, Hospital de Basurto, Bilbao. olagorri@hbas.osakidetza.net
authors.forename: O
authors.initials: O
authors.lastname: Gorriño
authors.forename: L
authors.initials: L
authors.lastname: Oleaga
authors.forename: R
authors.initials: R
authors.lastname: de la Fuente
authors.forename: A
authors.initials: A
authors.lastname: García Bolado
authors.forename: D
authors.initials: D
authors.lastname: Grande
mesh_terms: D000368:Aged; D016477:Artifacts; D001921:Brain / Q000473:pathology*; D005547:Foreign Bodies / Q000150:complications / Q000473:pathology*; D006801:Humans; D020766:Intracranial Embolism / Q000209:etiology / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male