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.