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Abstract #1180

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

S├ębastien Roujol1, Radhouene Neji1,2, 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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