Practical Considerations for Toroidal Transceive Interventional Device Visualization

Previous work has demonstrated the feasibility of using a toroidal transceive coil at 1.5T for visualizing conductive interventional devices, such as guidewires and EP ablation catheters. Here we investigate some of the practical challenges of using this approach, such as its compatibility with projection imaging, behavior with longer device insertion lengths, and the effect on image quality when the interventionist touches the device. We also demonstrate the extendibility to higher field strengths and a non-phantom setting by acquiring images at 3T of an EP ablation catheter inserted in the esophagus of a pig cadaver.

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