Wu Jingping, Meng Xiao, Wu Dan, Li Yuwei, Zhang Xinghua, Wang Zhenping, Wang Xue, Fan Zhang
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引用次数: 0
Abstract
Objectives:: Epicardial adipose tissue (EAT) contribute to atrial fibrillation (AF). We sought to explore the role of FAI (fat attention index), volume, fat radiomic profile (FRP) from peri-coronary artery adipose tissue (PCAT) on coronary computed tomography angiography (CCTA) in determining the presence of AF and differentiating AF types.
Methods: This study enrolled 300 patients underwent CCTA retrospectively and divided them into AF (n = 137) and non-AF groups (n = 163). The imaging parameters of FAI, volume and FRP were excavated and measured after PCAT segmentation. Every coronary artery extracted 853 radiomics and a total of 2559 radiomics were collected. Significant and relevant FRP was screened by random forest algorithm based on machine learning, and then compared three models of VF (FAI and volume), FRP and FRPC (FRP and clinical factors). Among AF individuals, the FRP and FRPC scores of persistent AF (PerAF, n = 44) and paroxysmal AF (PAF, n = 93) were compared with boxplot.
Results:: In the test cohort, FRP score performed excellent distinctive ability to identify AF with an AUC of 0.89 compared with the model enrolling FAI and volume (AUC = 0.83), and FRPC model showed improved AUC of 0.98 combining clinical factors. Among AF types, FPR and FRPC scores are significantly higher in the PerAF than PAF patients (p < 0.001). And twenty most contributive features were selected in identifying AF.
Conclusion: Textural radiomic features derived from PCAT on coronary CTA detect micro-pathophysiological information associated with AF, which may help identify and differentiate AF and provide a hopeful imaging target.
Advances in knowledge: The analysis of epicardial tissue around coronary arteries help identify and differentiate atrial fibrillation and its types. Fat radiomic profiles derived from peri-coronary arteries fat could provide non-invasive tool for atrial fibrillation.
期刊介绍:
BJR is the international research journal of the British Institute of Radiology and is the oldest scientific journal in the field of radiology and related sciences.
Dating back to 1896, BJR’s history is radiology’s history, and the journal has featured some landmark papers such as the first description of Computed Tomography "Computerized transverse axial tomography" by Godfrey Hounsfield in 1973. A valuable historical resource, the complete BJR archive has been digitized from 1896.
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- 2015 Impact Factor – 1.840
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- ISSN: 0007-1285
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