title: Evaluation of ferromagnetism and magnetic resonance imaging artifacts of the Strecker tantalum vascular stent.
abstract: A woven tantalum vascular stent (Strecker stent) was tested for ferromagnetism at 4.7 T and underwent magnetic resonance imaging (MRI) in vitro and in vivo at 1.5 T to evaluate the production of magnetic susceptibility artifacts. No ferromagnetism was detected. Spin-echo, phase reconstruction, and gradient echo images revealed a low level of susceptibility artifacts both in vitro and in vivo. Our findings demonstrate the feasibility of using MRI to evaluate blood vessels noninvasively following tantalum stent placement.
authors.affiliation: Department of Radiology, Georgetown University Hospital, Washington, D.C.
authors.forename: G P
authors.initials: GP
authors.lastname: Teitelbaum
authors.forename: M
authors.initials: M
authors.lastname: Raney
authors.forename: M J
authors.initials: MJ
authors.lastname: Carvlin
authors.forename: A H
authors.initials: AH
authors.lastname: Matsumoto
authors.forename: K H
authors.initials: KH
authors.lastname: Barth
mesh_terms: D000818:Animals; D001807:Blood Vessel Prosthesis; D004285:Dogs; D008279:Magnetic Resonance Imaging; D008280:Magnetics; D015607:Stents; D013635:Tantalum
chemical_list: D013635:Tantalum