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Patients referred for stress echocardiography may differ significantly from those referred for stress myocardial perfusion imaging (MPI). Such differences, if present, should be considered when comparing the accuracy and discriminatory performance of these tests.We prospectively collected demographic and clinical information on all stress imaging studies performed at our institution between 1998 and...
Background The left atrium (LA) is usually enlarged in patients with nonvalvular atrial fibrillation (AF), but factors associated with LA diameter are incompletely defined. Methods and Results This transthoracic echocardiographic cohort study includes 3465 participants with nonvalvular AF in 3 multicenter clinical trials. LA diameter determined by M-mode echocardiography was correlated with clinical...
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