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Radiology, Vol 170, 753-755, Copyright © 1989 by Radiological Society of North America

ARTICLES

Tantalum vascular stents: in vivo evaluation with MR imaging

AH Matsumoto, GP Teitelbaum, KH Barth, MJ Carvlin, MA Savin and EP Strecker
Department of Radiology, Georgetown University Hospital, Washington, DC 20007.

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.


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