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Abstract #0060

Three Dimensional Acute Radiofrequency Ablation Lesion Visualisation and Correlation with Electro-Anatomical Mapping System Ablation Points.

Benjamin R. Knowles1, Dennis Caulfield1, Aldo Rivaldi2, Michael Cooklin2, Jaswinder S. Gill2, Julian Bostock2, Reza Razavi1, Tobias Schaeffter1, Kawal S. Rhode1

1Division of Imaging Sciences, King's College London, London, UK; 2Department of Cardiology, Guy's and St Thomas' NHS Foundation Trust, London, UK

Radiofrequency ablation has become an increasingly common treatment for cardiac arrhythmias such as atrial flutter and atrial fibrillation. Delayed enhancement MRI has been previously been used to visualise the ablation lesions in the left atrium, however, determination of the ablation patterns is difficult from visualisation of the 2D slices. We present an automated method for the 3D visualisation of ablation lesions that allows for an intuitive assessment of lesion patterns. In this investigation, we demonstrate how our novel technique can be used to verify lesion locations as determined from electro-anatomical mapping systems.