ArticleThe international journal of cardiovascular imaging2023
Left atrial sphericity in relation to atrial strain and strain rate in atrial fibrillation patients.
Article in The international journal of cardiovascular imaging, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 8 citations in OpenAlex.
- Three-Dimensional Left Atrial Geometry in Atrial Fibrillation: Imaging Biomarkers, Substrate Phenotyping, and Ablation Outcome Prediction.Diagnostics (Basel, Switzerland) · 2026Review
- Integrating preoperative multiregion radiomic features with clinical data to predict atrial fibrillation recurrence after radiofrequency ablation.Frontiers in cardiovascular medicine · 2026Article
- Deep phenotyping of left atrial characteristics: sphericity and stiffness stratify patients with atrial fibrillation and cardioembolic stroke.The international journal of cardiovascular imaging · 2025Article
- Validation of a Manual Method for Measuring Left Atrial Reservoir Strain Against Automated Speckle Tracking Analysis.Diagnostics (Basel, Switzerland) · 2025Article
- Left Atrial Mechanics and Remodeling in Paroxysmal Atrial Fibrillation: Introducing the EASE Score for Pre-Ablation Risk Prediction.Medical sciences (Basel, Switzerland) · 2025Article
- 2025 THRS Expert Consensus of Imaging Assessment in Atrial Fibrillation.Acta Cardiologica Sinica · 2025Article
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeLeft atrial (LA) sphericity is a novel, geometry-based parameter that has been used to visualize and quantify LA geometrical remodeling in patients with atrial fibrillation (AF). This study examined the association between LA sphericity, and LA longitudinal strain and strain rate measured by feature-tracking in AF patients.
methods128 AF patients who underwent cardiovascular magnetic resonance (CMR) imaging in sinus rhythm prior to their pulmonary vein isolation (PVI) procedure were retrospectively analyzed. LA sphericity was calculated by segmenting the LA (excluding the pulmonary veins and the LA appendage) on a 3D contrast enhanced MR angiogram and comparing the resulting shape with a perfect sphere. LA global reservoir strain, conduit strain, contractile strain and corresponding strain rates were derived from cine images using feature-tracking. For statistical analysis, Pearson correlations, multivariable logistic regression analysis, and Student t-tests were used.
resultsPatients with a spherical LA (dichotomized by the median value) had a lower reservoir strain and conduit strain compared to patients with a non-spherical LA (-15.4 ± 4.2% vs. -17.1 ± 3.5%, P = 0.02 and - 8.2 ± 3.0% vs. -9.5 ± 2.6%, P = 0.01, respectively). LA strain rate during early ventricular diastole was also different between both groups (-0.7 ± 0.3s
conclusionsLA passive strain is significantly impaired in AF patients with a spherical LA, though this relation was not independent from LA volume.
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