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Abstract #0853

An MR Safe Steerable Catheter for MR-guided Endovascular Interventions

Mohamed E. M. K. Abdelaziz1, Libaihe Tian1, Thomas Lottner2, Simon Reiss2, Klaus Düring3, Guang-Zhong Yang4, Michael Bock2, and Burak Temelkuran1
1Hamlyn Centre for Robotic Surgery, Imperial College London, London, United Kingdom, 2Dept. of Radiology, Medical Physics, Medical Center, University of Freiburg, Freiburg, Germany, 3MaRVis Interventional GmBH, Krün, Germany, 4Shanghai Jiao Tong University, Shanghai, China

MR-guided intravascular interventions often lack steerable devices due to potential RF heating of long metallic components. In this study, we present a novel 7F MR safe and passively visible steerable catheter. Real-time MR image guidance of this catheter was demonstrated in a vessel phantom in a clinical 3T MR scanner to evaluate the catheter’s mechanical efficacy and MR visibility. Small vascular structures such as the renal artery could be probed efficiently with the polymer-only based catheter. With the integrated iron markers it was visible in its entirety, and the limited artifact size allowed for the effective visualization of surrounding tissue.

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