斑点追踪技术对房间隔缺损封堵术前后左心室短轴应变的定量评价  被引量:4

Quantitative evaluation of the changes of left ventricular short axial strain in patients with atrial septai defect before and after the transcatheter closure by two-dimensional speckle tracking imaging

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作  者:段艳[1] 张军[1] 拓胜军[1] 胡运[1] 朱霆[1] 

机构地区:[1]第四军医大学西京医院超声诊断科,西安710032

出  处:《中华超声影像学杂志》2015年第7期562-565,共4页Chinese Journal of Ultrasonography

摘  要:目的探讨二维斑点追踪技术在继发孔型房间隔缺损(ASD)患者封堵手术前后评价左室短轴应变中的应用。方法连续入选继发孔中央型ASD患者30例为病例组,分别于封堵术前、术后2d及术后6个月进行超声检查,应用斑点追踪技术测量左室短轴圆周应变及径向应变峰值,并与正常对照组比较。结果①ASD患者封堵术前各节段的圆周应变峰值均低于对照组(P〈0.05)。前间隔、前壁、侧壁、后壁术后2d较术前显著增高(P〈0.05),高于对照组(P〈0.05);术后6个月减低至正常水平;下壁、室间隔术后2d即增高至正常水平。②ASD患者术前除后壁外各节段的径向应变峰值均低于对照组(P〈0.05),术后2d增高(P〈0.05)并接近于对照组;后壁径向应变术前高于对照组(P〈0.05),术后6个月减低(P〈0.05)并接近于对照组。③ASD患者左室整体圆周应变术前低于对照组(P〈0.05),封堵术后2d增高(P〈0.05),高于对照组(P〈0.05);术后6个月降低至正常水平。ASD患者术前左室整体径向应变与对照组差异无统计学意义,封堵术后2d增高(P〈0.05),亦高于对照组(P〈O.05),术后6个月恢复正常。结论应用二维斑点追踪技术可以定量评价ASD患者封堵术前、后左室各节段及整体圆周应变、径向应变的变化。Objective To explore the short axial strain of left ventricle in patients with atrial septal defeet(ASD) before and after the transcatheter closure by using two-dimensional speckle tracking imaging (2D-STI). Methods A total of 30 patients with ASD underwent echocardiography before and after the transcatheter closure. The procedure was performed to obtain the peak of circumferential strain(Sc) and radial stain(Sr) of left ventricle by 2D-STI. Thirty healthy volunteers were enrolled as controls. Results (1) Compared with the control group, regional myocardial Sc of ASD group decreased( P 〈0.05). Sc of anterior septum (AS),anterior wall (AW),laterior wall (LW) and posterior wall (PW) increased ( P 〈0.05) at 2- days after the transcatheter closure and those parameters were higher than control group. At the six-months after the transcatheter closure,those parameters reduced to the normal level ( P 〈0.05). Sc of inferior wall (IW) and mid-posterior septum (MP-Sept) increased to the normal level at 2-days after the closure surgery ( P 〈0.05). (2)Compared with control group, regional myocardial Sr of ASD group decreased( P 〈0.05) except PW,two-days after the transcatheter closure these parameters increased to the normal level. Sr of PW in ASD group increased compared with control group( P 〈0.05), and there were no statistical changes at 2-days after the transcatheter closure. Sr of PW in ASD decreased ( P 〈0.05) to normal level until 6- months after the transeatheter closure. (3)Glohal circumferential strain (GCS) of left ventricular in ASD group were lower than control group ( P 〈0,05). At two-days after undergoing transcatheter closure the GCS increased ( P 〈0.05) and those parameters were higher than control group ( P 〈0.05). Six-months after the transcatheter closure those parameters reduced to the normal level ( P 〈0.05). There were no statistical differences of left ventricular global radial str

关 键 词:超声心动描记术 房间隔缺损 封堵 二维斑点追踪显像 应变 

分 类 号:R54[医药卫生—心血管疾病] R540.45[医药卫生—内科学]

 

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