ArticleEchocardiography (Mount Kisco, N.Y.)2026
Automated Echocardiographic Assessment of Left Atrial Remodeling in Atrial Fibrillation Using Dynamic HeartModel and AutoStrain LA.
Article in Echocardiography (Mount Kisco, N.Y.), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
purposeTo compare left atrial (LA) size, emptying function, and strain among non-atrial fibrillation (AF) controls, patients with paroxysmal AF (PAF), and patients with persistent AF (PeAF) using automated 3D Dynamic HeartModel (DHM) and AutoStrain LA, and to examine their association with AF stage.
methodsThis retrospective study included 210 participants: 70 non-AF controls, 70 patients with PAF, and 70 patients with PeAF. Controls and patients with PAF were examined during sinus rhythm; acquisition rhythm in PeAF was not uniformly documented. LA volumes and LA ejection fraction (LAEF) were measured using automated 3D DHM, and LA strain was assessed using AutoStrain LA. AF stage was coded as 0, 1, and 2. Multivariable regression analyses evaluated associations with LA volume index (LAVI), LAEF, and LA reservoir strain (LASr). Reproducibility was assessed using intraclass correlation coefficients.
resultsLAVI increased from 29.50 to 38.00 and 58.50 mL/m
conclusionAutomated 3D DHM and AutoStrain LA demonstrated graded LA enlargement, reduced emptying function, and impaired reservoir strain across AF temporal patterns. These automated measurements showed favorable reproducibility and may help characterize LA structural and functional remodeling in patients with AF.
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