实时三维超声心动图容积-时间曲线评价扩张型心肌病患者左心室收缩及舒张早期同步性  

Assessment of left ventricular systolic and early diastolic synchrony in patients with dilated cardiomyopathy using real-time three-dimensional echocardiographic volume-time curves

作　　者：崔亮[1] 叶雪存[1] 张学洪[1] 王卫真[1] 

机构地区：[1]江西省人民医院超声科,江西南昌330006

出　　处：《中国医学影像技术》2011年第6期1188-1192,共5页Chinese Journal of Medical Imaging Technology

摘　　要：目的应用实时三维超声心动图(RT-3DE)容积-时间曲线(VTC)评价扩张型心肌病(DCM)患者左心室收缩期及舒张早期同步性。方法对37例DCM患者(DCM组)和27名正常人(对照组)行RT-3DE检查,分析其VTC,得出左心室16节段、12节段、6节段心肌收缩期最小容积达峰时间标准差(Tmsv-SD)及舒张早期容积的时间标准差(Tedv-SD),用R-R间期标准化后,作为收缩期不同步化指数(SDI)、舒张早期不同步化指数(DDI)。结果①与对照组比较,DCM组左心室收缩期及舒张早期不同步化指数差异均有统计学意义。②在DCM组中,心肌收缩期SDI及舒张早期DDI均与左心室射血分数(LVEF)呈负相关。结论 DCM患者左心室既存在收缩不同步,也存在舒张早期不同步。Objective To evaluate the left ventricular systolic and early diastolic synchrony in patients with dilated cardiomyopathy（DCM） using real time three-dimensional echocardiography（RT-3DE） volume-time curves（VTC）.Methods Thirty-seven patients with DCM（DCM group） and 27 healthy subjects（control group） were examined with RT-3DE.VTC of two groups were analyzed.Standard deviation of time to minimal systolic volume（Tmsv-SD）,and standard deviation of time to early diastolic volume（Tedv-SD） about 16,12,6 segments were obtained and standardized using R-R interval as systolic dyssynchrony index（SDI） and early diastolic dyssynchrony index（DDI）.Results ①Compared with those of the control group,SDI and DDI were higher in DCM group.②SDI and DDI had negative correlation with LVEF in DCM group.Conclusion There was left ventricular systolic and early diastolic dysynchrony in patients with dilated cardiomyopathy.

关 键 词：超声心动描记术 实时三维 同步 心肌疾病 

分 类 号：R542.1[医药卫生—心血管疾病] R540.45[医药卫生—内科学]