Metallic otologic implants: in vitro assessment of ferromagnetism at 1.5 T

Autor:	Shellock, F G, Schatz, C J
Jazyk:	angličtina
Rok vydání:	1991
Předmět:	In Vitro Magnetics Ossicular Prosthesis Cochlear Implants Metals Contraindications Humans In Vitro Techniques Magnetic Resonance Imaging
Zdroj:	AJNR Am J Neuroradiol
Popis:	MR imaging is contraindicated for patients with certain ferromagnetic implants because of potential risks related to movement or dislodgement. This is especially true for metallic implants located in sensitive areas of the body, such as those placed in and around the ear. Therefore, the ferromagnetic qualities of 35 different metallic otologic implants were assessed by placing them individually on a millimeter scale in a plastic petri dish that was slowly moved into the center of a 1.5-T MR imaging system. None of the metallic otologic implants moved during this procedure. The results demonstrate that each of these implants are made from nonferromagnetic materials and do not pose a risk to patients undergoing high-field-strength MR imaging. These data effectively expand the list of metallic implants that appear to be safe for MR imaging.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=pmid________::39e3093df084cfc4ae07b762c3f2ec67 https://europepmc.org/articles/PMC8331431/ Zobrazit plný text záznamu