ArticleKorean journal of radiology2026
Left Atrial Time-to-Peak From Time-Resolved MR Angiography as a Noninvasive Indicator of Left Atrial Pressure Before Catheter Ablation of Atrial Fibrillation.
Article in Korean journal of radiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Response to "Interpreting Left Atrial Contrast Dynamics in Atrial Fibrillation: Rhythm Status, Hemodynamic Confounders, and Clinical Generalizability".Korean journal of radiology · 2026Article
- Interpreting Left Atrial Contrast Dynamics in Atrial Fibrillation: Rhythm Status, Hemodynamic Confounders, and Clinical Generalizability.Korean journal of radiology · 2026Article
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6 authors.
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Abstract
objectiveTo evaluate the performance of the left atrial time-to-peak (TTP) derived from time-resolved magnetic resonance angiography (TR-MRA) as a noninvasive indicator of left atrial pressure (LAP) in patients with atrial fibrillation (AF). MATERIALS AND
methodsThis retrospective study included 92 patients who underwent cardiac TR-MRA and catheter-based LAP measurements prior to catheter ablation for AF between January 2021 and December 2022. TR-MRA-derived TTP was measured in the left atrium using contrast-enhanced time-signal intensity curves. Catheter-based LAP measured during sinus rhythm served as the reference standard, with high LAP defined as ≥15 mmHg. Univariable and multivariable linear regression analyses were performed, with LAP as the dependent variable and echocardiographic parameters as covariates. The diagnostic performance of TTP for high LAP was evaluated using receiver operating characteristic (ROC) curve analysis.
resultsAmong the 92 patients (mean age ± standard deviation, 60 ± 10 years; 70 male), 70 (76.0%) had low LAP, and 22 (23.9%) had high LAP. Mean TTP was significantly longer in patients with high LAP than in those with low LAP (25.1 ± 6.9 s vs. 16.9 ± 5.7 s,
conclusionTR-MRA-derived TTP showed a significant independent association with invasively measured LAP. It may serve as a reliable noninvasive imaging marker for identifying high LAP in patients with AF undergoing catheter ablation.
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