Abstract #0469

Evaluation of an Integrated MR-EP Suite and Catheter-Navigated Local MR Lesion Monitoring After RF Ablation

Steffen Weiss¹, Sascha Krueger¹, Peter Koken¹, Gregg Stenzel², Steve Wedan², Ronald Holthuizen³, Jouke Smink⁴, Anne Krogh Grndal⁵, Lars lgaard Bloch⁵, James Harrison⁶, Mark O'Neill⁶, Reza Razavi⁶, Tobias Schaeffter⁶

¹Innovative Technologies, Research Laboratories, Philips Technologie GmbH, Hamburg, Germany; ²Imricor Medical Systems, Burnsville, MN, United States; ³MR Clinical Functionality, Philips Healthcare, Best, Netherlands; ⁴MR Clinical Science, Philips Healthcare, Best, Netherlands; ⁵MR Research Centre, Aarhus University Hospital, Aarhus, Denmark; ⁶Division of Imaging Sciences and Biomedical Engineering, Kings College London, London, United Kingdom

An MR-EP suite was developed that closely integrates all components required for clinical EP procedures. This includes wireless transmission of the ECG from the patient monitor to the EP recorder, automatic transmission of activation time delays from the EP recorder with on-the-fly generation of color-coded time maps based on a cardiac model, and automatic planning of scan orientations based on the position of the active tracking catheter. The suite was evaluated in pre-clinical mapping and ablation sessions in pigs. It enabled time-efficient mapping and ablation including catheter-navigated monitoring of catheter-tissue contact and lesion formation including wall thickening.