title: Tantalum vascular stents: in vivo evaluation with MR imaging.
abstract: Magnetic resonance (MR) imaging at 1.5 T was performed on tantalum vascular stents placed in the aortas of six dogs. The stents produced no significant artifact and allowed for clear depiction of the aortic lumina as flow-void zones with spin-echo imaging and as high-signal areas with gradient-echo imaging. The MR findings correlated with the angiographic studies of the stented vessels. These results demonstrate the feasibility of MR imaging as a noninvasive means of evaluating vessel patency in the presence of tantalum vascular stents.
authors.affiliation: Department of Radiology, Georgetown University Hospital, Washington, DC 20007.
authors.forename: A H
authors.initials: AH
authors.lastname: Matsumoto
authors.forename: G P
authors.initials: GP
authors.lastname: Teitelbaum
authors.forename: K H
authors.initials: KH
authors.lastname: Barth
authors.forename: M J
authors.initials: MJ
authors.lastname: Carvlin
authors.forename: M A
authors.initials: MA
authors.lastname: Savin
authors.forename: E P
authors.initials: EP
authors.lastname: Strecker
mesh_terms: D000818:Animals; D001012:Aorta, Abdominal / Q000033:anatomy & histology; D001807:Blood Vessel Prosthesis; D004285:Dogs; D008279:Magnetic Resonance Imaging; D013635:Tantalum; D014654:Vascular Patency
chemical_list: D013635:Tantalum