ArticleQuantitative imaging in medicine and surgery2026
The impact of body mass index and epicardial adipose tissue on left atrial function in hypertensive patients: a cardiac magnetic resonance feature tracking study.
Article in Quantitative imaging in medicine and surgery, 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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Abstract
Background: Hypertension (HTN) and obesity are major interrelated public health concerns that jointly contribute to cardiac dysfunction. This study aimed to utilize cardiac magnetic resonance feature-tracking (CMR-FT) to assess left atrial (LA) strain characteristics in HTN patients with varying degrees of obesity and to explore key influencing factors including epicardial adipose tissue (EAT). Methods: In this cross-sectional study of 129 essential hypertension (EH) patients [categorized by body mass index (BMI) into normal, overweight, and obese groups], CMR-FT was performed to assess LA and ventricular structure and function including LA strain [total strain (ε Results: Although LA volume indices and ejection fractions did not differ significantly, the obese group showed impaired strain rates (SRs: 1.1 Conclusions: CMR-FT reveals early LA dysfunction in patients with HTN and obesity, with detectable strain rate impairment before volumetric changes. Although LA passive emptying fraction and LA active emptying fraction were the principal determinants of LA deformation, EAT volume may provide incremental explanatory value beyond BMI for obesity-related LA dysfunction.
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