浙江医学2017，Vol.39Issue(5)：350-354,5.DOI:10.12056/j.issn.1006-2785.2017.39.5.2016-1243
实时三平面组织同步性成像检测慢性心力衰竭伴宽QRS波群患者左心室失同步研究
Assessment of left ventricular dyssynchrony in chronic heart failure patients with wide QRS complex by real-time triplane echocardiography
摘要
Abstract
Objective To investigate the application of real-time triplane tissue synchronization imaging (RT3P-TSI) in assessment of left ventricular synchrony for chronic heart failure (CHF) patients.Methods Seventy five CHF patients with wide QRS complex and 75 controls were enrolled in the study.The subjects underwent RT3P-TSI and conventional two dimensional TSI (2D-TSl) examinations.The dyssynchrony indices in six basal and six middle segments of left ventricle were compared between the two methods.Time consuming during examination was recorded;interobserver and intraboserver variability were calculated 15 days later.Results In the CHF group,the values of Ts and Ts-diff were significantly larger than those in control group (P＜0.01).The biggest value of Ts in CHF group was observed in posterior basal segment,followed by lateral basal segment.When using Ts-SD ≥33ms as definition for systolic dyssynchrony,the rate of dyssynchrony in CHF group was higher than that in control group (81.34％ vs 65.21％,P＜0.05 as measured by 2D-TSI,80.00％ vs 72.57％,P ＞0.05,as measured by RT3P-TSI).Pearson correlation analysis showed that the correlations between Ts and Ts-SD value calculated by two methods were moderate to high (r=0.85,0.57).The examination time of RT3P-TSI was lower than that of 2D-TSI (59.8 ± 11.8 vs 155.6 ±13.4 sec).Interobserver and intraboserver variability in evaluation of Ts by RT3P-TSI were lower than that by 2D-TSI.Conclusion The prevalence of left ventricle dyssynchrony was much higher in CHF patients with wide QRS complex than that in non-CHF patients with wide QRS complex.In CHF patients the left ventricle contracts are delayed in most segments,particularly in posterior wall.The RT3P-TSI method demonstrates excellent agreement with conventional 2D-TSI in evaluation of left ventricular synchronization with less time consuming and less variability.关键词
实时三平面组织同步性成像/左心室失同步/慢性心力衰竭/宽QRS波群Key words
Real-time triplane tissue synchronization imaging/Left ventricle dyssynchrony/Chronic heart failure/Wide QRS complex引用本文复制引用
毛萍,周李涛,徐晨凯,唐礼江,孙寅光..实时三平面组织同步性成像检测慢性心力衰竭伴宽QRS波群患者左心室失同步研究[J].浙江医学,2017,39(5):350-354,5.基金项目
浙江省重大科技专项计划项目(2012C13018-1) （2012C13018-1）
