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Abstract #4518

Radiofrequency Ablation Characterization: Comparison of Multi-Contrast Late Enhancement and Late Gadolinium Enhancement Sequences

Haydar Celik1, Venkat Ramanan1, Jennifer Barry1, Sudip Ghate1, Vivian Leber1, Mohammed Shurrab2, Samuel Oduneye1, Nilesh R. Ghugre1, Eugene Crystal2, Graham A. Wright1

1Imaging Research, Sunnybrook Research Institute, Toronto, ON, Canada; 2Arrhythmia Services, Sunnybrook Research Institute, Toronto, ON, Canada

Cardiologists treat arrhythmias, which are the results of abnormal electrical pulses in heart, by creating radiofrequency ablation (RFA) lines under the guidance of x-ray. Although x-ray is accurate for catheter visualization, its soft tissue contrast is insufficient to visualize RFA lesions. The late Gd-DTPA enhancement (LGE) method has been used for characterization of RFA lesions.