Abstract #1180

In-vivo Imaging of Ablation Lesions during MRI-guided Epicardial Ventricular Ablation in Swine

Sébastien Roujol¹, Radhouene Neji^1,2, Henry Chubb¹, John Silberbauer¹, Tom Lloyd³, Thomas Pohl⁴, Rainer Schneider⁴, Nick Kampa³, James Harrison¹, Steven Williams¹, Rahul Mukherjee¹, Louisa O'Neill¹, John Whitaker¹, Matthew Wright¹, Tobias Schaeffter¹, Mark O'Neill¹, and Reza Razavi¹

¹Division of Imaging Sciences and Biomedical Engineering, King's College London, London, United Kingdom, ²MR Research Collaborations, Siemens Healthcare Limited, Frimley, United Kingdom, ³Imricor Medical Systems, Burnsville, MN, United States, ⁴Siemens Healthcare GmbH, Erlangen, Germany

Cardiac MR (CMR) shows promise for the guidance of ventricular tachycardia (VT) ablation procedures and imaging of ablation lesions. CMR-thermometry is a promising approach for real-time tissue temperature monitoring and tissue characterization for prediction of permanent ablation lesions. In this study, we sought to develop an integrated multi-parametric framework for real-time, hyper-acute and acute imaging of ablation lesions using CMR-thermometry, native T1 mapping and late gadolinium enhancement (LGE), respectively. This framework is evaluated during MR-guided epicardial ventricular ablation in swine.

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