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Abstract #0247

Reconstruction of Arrhythmic Cardiac Cycles in Patients with Atrial Fibrillation

Teodora Chitiboi1, Li Feng1, Rebecca Ramb2, Ricardo Otazo1, and Leon Axel1

1New York University School of Medicine, New York, NY, United States, 2Siemens Healthineers, Erlangen, Germany

Arrhythmia is often a significant challenge to acquiring diagnostic quality cardiac MRI. While discarding atypical cardiac cycles can exclude short-lived arrhythmic events, such as premature ventricular contractions (PVCs), this fails for atrial fibrillation (Afib), where subjects have an irregular cardiac cycle pattern. Harnessing the potential of the XD-GRASP MRI technique to reconstruct continuously acquired data with cardiac and respiratory phase as extra dimensions, we propose to additionally classify cardiac cycles for Afib patients according to their preload state, and simultaneously reconstruct the different types of arrhythmic cycles in a five-dimensional image space.

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