Abstract #0779

AI-supported Segmentation of the Whole Left Atrium in Cine MRI Identifies a New Geometrical Predictor of Outcome in Atrial Fibrillation

Maurice Pradella¹, Sven Knecht², Manuela Moor¹, Shan Yang¹, Constantinos Anastasopoulos¹, Gian Voellmin², Philip Haaf², Stefan Osswald², Michael Kuehne², Christian Sticherling², Bram Stieltjes¹, and Jens Bremerich¹

¹Department for Radiology, University Hospital Basel, Basel, Switzerland, ²Department for Cardiology, University Hospital Basel, Basel, Switzerland

Deep learning based, automatic segmentation of the whole left atrium in cine MRI makes detailed geometrical analysis possible by fitting of an ellipsoid into the contours of the left atrium. Therefore, we could identify the ellipsoidal volume at the time-point before atrial contraction as an independent predictor of recurrence of atrial fibrillation after catheter ablation in a multivariable analysis.

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