Clinical value of delayed enhancement MRI in evaluating the prognosis of surgical ablation in patients with atrial fibrillation
ZHOU Min
HUANG Ri-tai
XUE Song
Abstract：Objective To investigate the value of Delayed Enhancement MRI(DE-MRI) in evaluating the prognosis of surgical ablation in patients with atrial fibrillation (AF) and the relationship between DE-MRI and histopathology examination.Methods From October 2013 to December 2015,43 AF patients undergoing surgical ablation got DE-MRI before the surgery and were divided into three groups according to the extent of atrial fibrosis.With the surgical occlusion process,the left atrial appendages were taken to histopathology examination and RTPCR.Results The results of DE-MRI were correlated with the histopathology examinations(r=0.69,0.48,0.65,0.51,0.47,0.52,P＜0.05);the sinus rhythm rate in 1 year of the moderate-enhancement group was much higher than the unusual-enhancement group (80.0％ vs 57.1％,P＜0.05).Conclusion DE-MRI can be used to detect the extent of the atrial fibrosis and late enhancement area over 35％ suggests poor prognosis.
Keywords：Atrial fibrillationMyocardial fibriosisDelayed-Enhancement Magnetic resonance imaging
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 350-354 )