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Transfemoral Catheterization of Carotid Arteries with Real-time MR Imaging Guidance in Pigs¹

¹ From the Department of Radiology, Columbia University, 177 Fort Washington Ave, MHB 8SK, New York, NY 10032 (L.F., S.D., R.L.D., J.P.S.); and General Electric Global Research Center, Schenectady, NY (C.L.D., R.D.D., R.G., P.L.B.). Received December 3, 2003; revision requested February 12, 2004; revision received March 2; accepted March 29. J.P.S. supported by a grant from GE Medical Systems. Address correspondence to J.P.S. (e-mail: jp59@columbia.edu).

All procedures and protocols were approved by the institutional animal care and use committee of Columbia University. To determine whether transfemoral catheterization of the carotid arteries can be performed entirely with real-time magnetic resonance (MR) imaging guidance, the authors catheterized the carotid arteries in six domestic pigs by using active-tracking catheters and guidewires and MR tracking software created for neurovascular procedures. The carotid arteries were successfully catheterized 24 times, on average within 5 minutes after insertion of the catheter into the femoral artery. Results demonstrated the feasibility of performing transfemoral catheterization of the carotid arteries with active MR tracking devices in a conventional MR imaging unit.

Supplemental material: radiology.rsnajnls.org/cgi/content/full/2341031951/DC1.

© RSNA, 2004

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