Magnetic Resonance Imaging (MRI) is a means to guide cardiac interventions and provide excellent soft tissue contrast while avoiding radiation hazards. This paper investigates and evaluates a new Magnetic Resonance (MR)-compatible catheter for cardiac catheterization. Important mechanical properties of the catheter are measured and investigated; these include flexibility, pushability, and torquability. The mechanical performance of the MR-compatible and steerable catheter is benchmarked against three commercially-available clinical ablation catheters that are not MR-compatible. The MR-compatibility of the proposed catheter is also evaluated through an experimental study inside a 1.5 T MRI scanner. The new catheter is shown to have a mechanical performance comparable to that of existing catheters while being MR compatible.
Developing a Magnetic Resonance-Compatible Catheter for Cardiac Catheterization
Manuscript received July 11, 2011; final manuscript received May 22, 2012; published online October 11, 2012. Assoc. Editor: James Moore.
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Yao, W., Schaeffter, T., Seneviratne, L., and Althoefer, K. (October 11, 2012). "Developing a Magnetic Resonance-Compatible Catheter for Cardiac Catheterization." ASME. J. Med. Devices. December 2012; 6(4): 041002. https://doi.org/10.1115/1.4007281
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