Application of cardiac MR strain parameters in quantitative evaluation of early left ventricular involvement in arrhythmogenic right ventricular cardiomyopathy
10.3969/j.issn.1002-1671.2025.06.015
- VernacularTitle:心脏MR应变参数定量评估致心律失常性右室心肌病早期左心室受累的应用价值
- Author:
Jiang WU
1
;
Xuan LI
;
Lina ZHU
;
Xiaoyong HAO
Author Information
1. 山西省心血管病医院磁共振室,山西 太原 030024
- Publication Type:Journal Article
- Keywords:
arrhythmogenic right ventricular cardiomyopathy;
feature tracking;
left ventricle;
cardiac magnetic resonance
- From:
Journal of Practical Radiology
2025;41(6):964-968
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the changes in biventricular myocardial strain and the value of strain in evaluating left ventricular function in arrhythmogenic right ventricular cardiomyopathy(ARVC)patients using cardiovascular magnetic resonance feature tracking(CMR-FT)technique.Methods The retrospective study included 25 patients with ARVC and 25 healthy volunteers(control group),who underwent cardiac magnetic resonance(CMR)examination.One-way ANOVA was used to analyze and compare biventricular function parameters,global and local myocardial strain parameters between left ventricular ejection fraction(LVEF)≥50％ARVC,LVEF＜50％ARVC and control groups.Diagnostic efficacy of myocardial strain indexes was evaluated by receiver operating characteristic(ROC)curve.Results In the LVEF＜50％ARVC group,the global longitudinal strain(GLS),global radial strain(GRS)and global circumferential strain(GCS)in left ventricular were lower than the control group(P＜0.05).While only left ventricular GLS,basal longitudinal strain(BLS),and middle longitudinal strain(MLS)were lower in the LVEF 50％ARVC group than in the control group(P＜0.05).ROC curve analysis demonstrated that left ventricular strain was an effective mean of discriminating ARVC patients from control group and performed well in equally discriminating the diagnosis of the LVEF≥50％ARVC group from control group.The area under the curve(AUC)for right ventricular GLS,GRS,and GCS were 0.904,0.893,and 0.874,respectively.Conclusion CMR-FT technique is capable of detecting biventricular myocardial strain characteristics and identifying early left ventricular involvement in ARVC patients.
