实时三维斑点追踪成像技术评价肥厚性心肌病患者左室整体收缩功能的研究  

Assessment of left ventricular systolic function in patients with hypertrophic cardiomyopathy using real-time three-dimension speckle tracking imaging

作　　者：梁慧青[1] 刘昕[1] 崔翊[1] 傅群峰[1] 刘子腾[1] 郭淑芹[1] 

机构地区：[1]河北省保定市第一中心医院超声科,071000

出　　处：《临床超声医学杂志》2016年第11期741-744,共4页Journal of Clinical Ultrasound in Medicine

摘　　要：目的探讨应用实时三维斑点追踪成像(RT3D-STI)技术评价肥厚性心肌病(HCM)患者左室整体收缩功能的应用价值。方法选取HCM患者40例(HCM组)和健康成人40例(正常对照组),行常规超声心动图检查后再应用RT3D-STI技术测量两组左室整体长轴应变(GLS)、周向应变(GCS)、径向应变(GRS)及面积应变(GAS),并比较上述参数。结果两组受检者舒张早期与舒张晚期二尖瓣血流速度比值比较,差异有统计学意义(P<0.01)。HCM组GLS、GRS分别为(-9.3±6.5)%、(42.3±10.5)%,均较正常对照组[(-22.1±0.5)%、(56.0±0.9)%]减低,差异均有统计学意义(均P<0.05)。GLS、GAS与左室舒张末期室间隔的最大厚度相关性较好(r=0.861、0.812,均P<0.01)。结论RT3D-STI技术能准确地评价HCM患者左室整体收缩功能。Objective To explore the value of real-time three-dimensional speckle tracking imaging（RT3D-STI）in evaluating left ventricular global systolic function in patients with hypertrophic cardiomyopathy（HCM）. Methods Forty patients with HCM（HCM group）and 40 healthy subjects（control group）were enrolled. Left ventricular global longitudinal strain（GLS）,left ventricular global circumferential strain（GCS）,left ventricular global radial strain（GRS）and left ventricular global area strain（GAS）were measured by RT3D-STI technology,and the parameters were compared. Results There was significant difference of the ratio of early（E）to late（A）mitral valve flow velocity between the two groups（P〈0.01）. GLS and GRS in HCM group were（-9.3±6.5）%,（42.3±10.5）%,decreased compared with the control group[（-22.1±0.5）%,（56.0±0.9）%],there was significant difference（all P 0.05）. There were negative correlations between GLS,GAS and interventricular septal thickness at end diastole（r = 0. 861,0. 812,both P 0. 01）. Conclusion The overall left ventricular systolic function can be accurately evaluated by RT3D-STI in patients with HCM.

关 键 词：斑点追踪成像技术 三维 实时 超声心动描记术 肥厚性心肌病 心室功能 左 

分 类 号：R542.2[医药卫生—心血管疾病] R540.45[医药卫生—内科学]