Assessment of right ventricular regional systolic function in patients with tetralogy of Fallot by ultrasound speckle tracking imaging

VernacularTitle:超声斑点追踪成像评价法洛四联症患者右心室局部收缩功能
Author: Yuman LI ; Mingxing XIE ; Qing Lü ; Xiaofang LU ; Yali YANG ; Hong MA ; Lingyun FANG ; Jing ZHANG ; Weiqin LI
Publication Type:Journal Article
Keywords: Echocardiography; Tetralogy of Fallot; Vemricular function,right; Speckle tracking imaging
From: Chinese Journal of Ultrasonography 2009;18(12):1022-1025
CountryChina
Language:Chinese
Abstract: Objective To assess right ventricular(RV)regional systolic function in patients with tetralogy of Fallot(TOF)by ultrasound speckle tracking imaging(STI).Methods Longitudinal peak systolic velocity(V), strain(ε),strain rate(SRs)were measured in RV free wall and interventricular septum(IVS)for basal, mid and apical segment in 38 patients with TOF and 35 healthy controls by STI from the apical 4-chamber view and compared between groups.Results Compared with controls,ε and SRs of RV free wall and IVS for all segments were significantly impaired in patients with TOF(P<0.05 for all).Whereas, V of RV each segment were normal (P>0.05 for all).In patients with TOF and controls.V,εand SRs of RV free walI for all segments were higher than those of IVS except SRs of RV apical segment.Conclusions RV systolic function in patients with TOF was decreased, RV longitudinal systolic function is accurately and objectively studied by STI.