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Abstract #4145

Imitation of Radiofrequency Ablation Scars with Laser System for MR Guided Ablation of Atrial Fibrillation

Can Kerse1,2, Bulent Oktem3, Fatih Omer Ilday4, Ergin Atalar, 2,5

1Department of Electrical and Electronics Engineering , Bilkent University, Ankara, Turkey; 2UMRAM (National Research Center for Magnetic Resonance), Ankara, Turkey; 3Material Science and Nanotechnology Graduate Program, Bilkent University, Ankara, Turkey; 4Physics Department, Bilkent University, Ankara, Turkey; 5Department of Electrical and Electronics Engineering, Bilkent University, Ankara, Turkey

Fiber delivery of laser energy has no MR compatibility issues and is used with MR guidance in the field. But, it is not widely used as the cure of Atrial Fibrillation, since there is risk of perforating the myocardial wall. Several diffusing tip designs to emit light in cylindrical symmetry exist, but, due to their orientation with respect to the cardiac chamber, common RF delivery methods cannot be applied directly. In our study, we propose a novel multiple fiber laser energy delivery with catheter approach and a system that imitates the scars created with RF probes under MR guidance.