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Abstract #3697

Acute Assessment of Radiofrequency Ablation Cardiac Lesions by Non-Contrast MRI

Eugene G. Kholmovski 1,2 , Ravi Ranjan 2 , Sathya Vijayakumar 2,3 , Joshua M. Silvernagel 2 , and Nassir F. Marrouche 2

1 UCAIR, Department of Radiology, University of Utah, Salt Lake City, Utah, United States, 2 CARMA Center, University Of Utah, Salt Lake City, Utah, United States, 3 Surgical Services Clinical Program, Intermountain Healthcare, Salt Lake City, Utah, United States

Development of MRI-guided electro-physiology procedures for atrial fibrillation ablations requires robust MRI techniques for intra-procedural evaluation of acute cardiac ablations. LGE-MRI has been used to visualize ablation related tissue changes but it requires contrast infusion limiting repeatability. In this study, we demonstrate that non-contrast T1-weighted technique can be used to visualize acute cardiac RF lesions.

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