赣南医学院学报2024，Vol.44Issue(3)：248-254,7.DOI:10.3969/j.issn.1001-5779.2024.03.007
心脏磁共振特征追踪技术在特发性室性心律失常患者中的应用研究
Application research of cardiac magnetic resonance feature tracking technology in patients with idiopathic ventricular arrhythmias
摘要
Abstract
Objective:To explore the value of cardiac magnetic resonance feature tracking(CMR-FT)in the early assessment of left ventricular dysfunction in patients with idiopathic ventricular arrhythmias(IVA).Methods:A total of 106 patients with idiopathic ventricular arrhythmias treated at our hospital from January 2018 to May 2023 were retrospectively included.Based on 24-hour ambulatory electrocardiography,the patients were divided into two groups:the frequent premature ventricular contractions group(PVCs)and the non-sustained ventricular tachycardia group(NSVT).Additionally,40 healthy individuals who underwent cardiac magnetic resonance(CMR)examination during the same period were selected as the control group.Post-processing software was employed to assess conventional left ventricular functional parameters and myocardial strain parameters,including left ventricular ejection fraction(LVEF),left ventricular end diastolic volume index(LVEDVI),left ventricular end systolic volume index(LVESVI),left ventricular myocardial mass index(LVMI),as well as peak strain and peak strain rate parameters in three directions of the left ventricle data analysis was performed by using SPSS 26.0 software.Results:In the PVCs group,the left ventricular end-systolic volume index(LVESVI)was higher compared to both the NSVT and control groups,while LVEF was lower than those of the NSVT group and control group(P＜0.05).Global radial strain(GRS),global circumferential strain(GCS),global longitudinal strain(GLS),systolic radial strain rate peak(SRSR),and systolic circumferential strain rate peak(SCSR)in all idiopathic ventricular arrhythmia(IVA)groups were lower than those in the control group(P＜0.05).GRS,GCS,GLS,SRSR,and SCSR also exhibited significant differences between the PVCs and NSVT groups(P＜0.01),and diastolic radial strain rate peak(DRSR)in the PVCs group was lower than that in the NSVT and control groups(P＜0.05).Left ventricular strain parameters demonstrated a strong correlation with LVEF,with GRS showing the highest correlation(r=0.586,P＜0.01).Strain parameters showed mild correlations with heart rate,LVESVI,and LVESVI.The combined use of multiple myocardial strain parameters has a high diagnostic value in differentiating patients with PVCs and NSVT(AUC=0.822,sensitivity 87.2%,specificity 75.5%).Conclusion:CMR-FT technology can detect early left ventricular dysfunction in patients IVA,assess the severity of the disease,and provide new evidence for risk stratification and the formulation of clinical management strategies.关键词
室性心律失常/心室功能,左/磁共振成像/特征追踪Key words
Ventricular arrhythmia/Ventricular function,left/Magnetic resonance imaging/Feature-tracking technology分类
医药卫生引用本文复制引用
廖伟伟,钟俭平..心脏磁共振特征追踪技术在特发性室性心律失常患者中的应用研究[J].赣南医学院学报,2024,44(3):248-254,7.基金项目
国家自然科学基金项目(82160330) （82160330）
江西省自然科学基金项目(20202ACBL216006) （20202ACBL216006）
江西省卫生健康委员会科技计划项目(202140784) （202140784）
江西省医学影像临床医学研究中心项目(20223BCG7400199) （20223BCG7400199）
