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ROC curves of LAT for prediction of atrial substrate. The ROC curves of LAT for prediction of atrial substrate with an area under the curve (AUC) of LA roof: 0.954 (95% confidence interval [CI] 0.909–0.999, P < .0001) and LA floor: 0.820 (95% CI 0.737–0.903, P < .0001). ROC = receiver operating characteristic curve, LAT = left atrial wall thickness, LA = left artery.
