Tantalum vascular stents: in vivo evaluation with MR imaging.
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.
Matsumoto
A H
AH
Department of Radiology, Georgetown University Hospital, Washington, DC 20007.
Teitelbaum
G P
GP
Barth
K H
KH
Carvlin
M J
MJ
Savin
M A
MA
Strecker
E P
EP
D000818:Animals; D001012:Aorta, Abdominal / Q000033:anatomy & histology; D001807:Blood Vessel Prosthesis; D004285:Dogs; D008279:Magnetic Resonance Imaging; D013635:Tantalum; D014654:Vascular Patency
D013635:Tantalum