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Abstract #1196

Initial technical developments of local RF coil for sub-millimeter cardiovascular MRI.

Marylène Delcey1,2,3,4, Isabelle Saniour5, Pierre Bour1,2,4, Fanny Vaillant1,2,4, Emma Abell1,2,4, Wadie Benhassen3, Marie Poirier-Quinot5, and Bruno Quesson1,2,4
1IHU Liryc, Electrophysiology and Heart Modeling Institute, Fondation Bordeaux Université, Pessac, France, 2Univ. Bordeaux, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France, 3Siemens Healthcare SAS, Saint-Denis, France, 4INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, U1045, Bordeaux, France, 5IR4M, UMR8081, Université Paris-Sud/CNRS, Université Paris-Saclay, Orsay, France

In the context of cardiovascular diseases, precise determination of the extent and locations of the arrhythmogenic substrate could significantly improve diagnosis and treatment for both atrial and ventricular electrical diseases. However, the current spatial resolution and signal-to-noise ratio (SNR) in clinical scanners remain insufficient to provide relevant information of small structures like atrial wall or sub-millimeter fatty infiltration in ventricle. To address this limitation in SNR, two receiver coils were implemented at 1.5T for high resolution cardiac imaging, with different active decoupling techniques (safety aspects). Images at 200 µm in-plane spatial resolution were successfully obtained on a beating heart.

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