实时三维超声心动图评价正常新生儿左心室收缩同步性  

Real-time three-dimensional echocardiography in evaluation of left ventricular systolic synchrony in normal newborns

作　　者：徐敏[1] 胡倩[1] 任卫东[1] 毛健[2] 毕文静[1] 

机构地区：[1]中国医科大学附属盛京医院超声科,辽宁沈阳110004 [2]中国医科大学附属盛京医院新生儿科,辽宁沈阳110004

出　　处：《中国医学影像技术》2015年第10期1519-1522,共4页Chinese Journal of Medical Imaging Technology

基　　金：辽宁省科技厅科学技术计划项目(2013225049)

摘　　要：目的探讨实时三维超声心动图(RT3DE)评价中国东北地区正常新生儿左心室收缩同步性的可行性、准确性及其影响因素。方法回顾性分析本院接受RT3DE检查的93名中国东北地区的正常新生儿,测量左心室16、12节段和6节段的达最小容积时间的标准差(Tmsv 16-SD、Tmsv 12-SD、Tmsv 6-SD)和最大差值(Tmsv 16-Dif、Tmsv 12-Dif、Tmsv6-Dif),同时测量心率校正的各参数(%R-R)Tmsv。探讨性别、胎龄、出生体质量和心率对各参数的影响。结果 Tmsv12-SD与Tmsv 6-SD、Tmsv 12-Dif与Tmsv 6-Dif均高度相关(r=0.76、0.80,P均<0.001);Tmsv 16-Dif与Tmsv 12-Dif中度相关(r=0.47,P<0.001);Tmsv 16-SD与Tmsv 12-SD、Tmsv 16-SD与Tmsv 6-SD、Tmsv 16-Dif与Tmsv 6-Dif弱相关(r=0.27、0.23、0.34,P均<0.05)。性别、胎龄和出生体质量对各参数无影响,心率与Tmsv-SD、Tmsv-Dif呈负相关,对(%R-R)Tmsv无影响。结论 RT3DE方法测量的16节段Tmsv-Dif和Tmsv-SD可全面、准确地评价正常新生儿左心室收缩同步性。Objective To explore the feasibility,accuracy and its influencing factors of real-time three-dimensional echocardiography（RT3DE）in evaluation of left ventricular（LV）systolic synchrony in northeast China normal newborns.Methods Ninety-three northeast Chinese normal newborns underwent RT3 DE were retrospectively analyzed.The standard deviation（Tmsv-SD）and maximal difference（Tmsv-Dif）of the time to the point of minimal regional systolic volume（Tmsv）,together with their adjusted parameters by heart rate（%R-R）Tmsv,were calculated from left ventricular 16 segments,12segments and 6segments.Influences of gender,gestational age,birth weight and heart rate on parameters was explored.Results High correlation was observed between Tmsv 12-SD and Tmsv 6-SD,Tmsv 12-Dif and Tmsv 6-Dif,respectively（r=0.76,0.80,P〈0.001）;Tmsv 16-Dif had moderately correlation with Tmsv 12-Dif（r=0.47,P〈0.001）;Weakly correlation was observed between Tmsv 16-SD and Tmsv 12-SD,Tmsv 16-SD and Tmsv 6-SD,Tmsv 16-Dif and Tmsv 6-Dif（r=0.27,0.23,0.34,P〈0.05）.Gender,gestational age and birth weight did not affect on these parameters.Heart rate correlated negatively with Tmsv-SD and Tmsv-Dif,but had no effect on parameters adjusted by R-R interva1.Conclusion Tmsv-Dif and Tmsv-SD measured from 16 segments by RT3 DE are useful and reliable parameters for evaluating LV systolic synchrony.

关 键 词：超声心动描记术 新生儿 心室功能 左 收缩功能 同步性 

分 类 号：R542.220.5[医药卫生—心血管疾病]