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Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
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Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation

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Association of pericoronary adipose tissue with atrial fibrillation recurrence after ablation based on computed

Guo-Jing Ma1,2, Fu-Qian Guo1, Jie Hu3

  • 1Department of Medical Imaging, The Second Hospital of Hebei Medical University, 215 West Heping Road, Shijiazhuang, 050011, Hebei Province, China.

Japanese Journal of Radiology
|April 11, 2023
PubMed

Insights

Epicardial adipose tissue volume index (EATVI) and left circumflex artery fat attenuation index (LCX-FAI) predict atrial fibrillation (AF) recurrence after ablation. These measurements offer valuable clinical insights for post-ablation AF management.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Biomedical Engineering

Background:

  • Pericoronary adipose tissue volume (PCATV) and fat attenuation index (FAI) are primarily studied in coronary artery disease.
  • Their association with atrial fibrillation (AF) recurrence post-ablation is less explored.

Purpose of the Study:

  • To investigate the correlation between PCATV, FAI, and AF recurrence after radiofrequency ablation.
  • To assess the clinical significance of these adipose tissue measurements in predicting AF recurrence.

Main Methods:

  • Retrospective analysis of patients with continuous AF undergoing radiofrequency ablation and computed tomographic angiography (CTA).
  • Quantitative measurement of PCATV, FAI, epicardial adipose tissue volume (EATV), and EAT density (EATD) around major coronary arteries (LAD, LCX, RCA).

Main Results:

  • Among 189 patients, 47 (24.9%) experienced AF recurrence within 12 months.
  • Increased 3V-FAI, LCX-FAI, EATV, and EATVI were observed in the recurrence group.
  • LCX-FAI and EATVI emerged as significant independent risk factors for AF recurrence, with LCX-FAI demonstrating higher predictive value (AUC 0.722) than EATVI (AUC 0.630).

Conclusions:

  • Epicardial adipose tissue volume index (EATVI) and left circumflex artery fat attenuation index (LCX-FAI) are associated with AF recurrence post-ablation.
  • These imaging biomarkers hold significant clinical value in predicting AF recurrence, aiding in patient management strategies.
Abstract

Keywords:
Atrial fibrillation recurrenceComputed tomographic angiographyFat attenuation indexLeft circumflex coronary arteryPericoronary adipose tissue volume

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