摘要
目的探讨时间—空间相关成像(Spatiotemporal Image Correlation,STIC)技术联合组织多普勒成像(Tissue Doppler Imaging,TDI)技术在脐绕颈胎儿右心功能评价中的应用价值。方法选取我院98例脐绕颈胎儿作为研究对象,根据脐绕颈的周数分A组(脐绕颈1周)与B组(脐绕颈2周及以上),选择同期同孕周无脐绕颈胎儿143例作为对照组。应用STIC技术获得胎儿右心室收缩末期容积(Right Ventricular End Systolic Volume,RVESV)及右心室舒张末期容积(Right Ventricular End Stroke Volume,RVEDV),计算右心室每搏输出量(Right Ventricular Stroke Volume,RVSV)、右心室心排血量(Right Ventricular Cardiac Output,RVCO)及右心室射血分数(Right Ventricular Ejection Fraction,RVEF)。应用TDI技术获得三尖瓣环组织多普勒频谱,记录舒张早期Ea峰,舒张晚期Aa峰及收缩期Sa峰,并计算Ea/Aa值及Tei指数。比较三组胎儿上述各参数。结果与对照组相比,A组胎儿RVESV、RVEDV、RVSV、RVCO、RVEF差异均无统计学意义(P均>0.05),Ea、Aa、Ea/Aa值均减小,差异均有统计学意义(P均<0.05),Tei指数增大,差异有统计学意义(P<0.05);B组胎儿较对照组及A组RVESV、RVEDV、Tei指数均增大,差异均有统计学意义(P均<0.05),RVSV、RVCO、RVEF均减小,差异均有统计学意义(P均<0.05);B组胎儿Ea、Aa、Ea/Aa较对照组均减小,差异均有统计学意义(P均<0.05),与A组相比,差异均无统计学意义(P均>0.05)。结论STIC技术联合TDI技术可较全面的评估脐绕颈胎儿右心收缩功能、舒张功能及整体心功能,指导临床医生进行积极的干预。
Objective To investigate the application value of spatiotemporal image correlation(STIC)combined with tissue Doppler imaging(TDI)in evaluating the right ventricular function of fetus with umbilical cord around neck.Methods A total of 98 cases of umbilical cord around the neck in our hospital were selected as the research object.According to the number of umbilical cord around the neck,they were divided into A group(umbilical around the neck for one week)and B group(umbilical around the neck for two weeks or more).In addition,143 cases of fetus without umbilical cord around the neck in the same gestational week were selected as the control group.The right ventricular end systolic volume(RVESV)and right ventricular end stroke volume(RVEDV)were obtained by STIC technique.Then the right ventricular stroke volume(RVSV),right ventricular cardiac output(RVCO)and right ventricular ejection fraction(RVEF)were calculated.Doppler spectra of tricuspid annulus tissue were obtained by TDI technique.EA peak in early diastolic phase,Aa peak in late diastolic phase and Sa peak in systolic phase were recorded,and Ea/Aa value and Tei index were calculated.The results of the above indicators were compared and analyzed among the three groups.Results Compared with the control group,there was no significant difference in RVESV,RVEDV,RVSV,RVCO and RVEF in A group(all P>0.05),while the values of Ea,Aa and Ea/Aa were decreased(P<0.05),and Tei index was increased(P<0.05).Compared with the control group and A group,the RVESV,RVEDV,Tei index of B group were increased,while RVSV,RVCO and RVEF were decreased,the differences were statistically significant(all P<0.05).In addition,Ea,Aa and Ea/Aa in B group were significantly lower than those in control group(P<0.05),but there was no significant difference between A group and B group(P>0.05).Conclusion STIC combined with TDI can accurately evaluate right ventricular systolic,diastolic and global function of the fetuses with nuchal cord,which can provide important information in guiding the active
作者
张力维
王义成
杨瑞敏
刘云春
刘宏强
罗兵
程志华
ZHANG Liwei;WANG Yicheng;YANG Ruimin;LIU Yunchun;LIU Hongqiang;LUO Bing;CHENG Zhihua(Department of Ultrasound,The First Affiliated Hospital of Hebei North University,Zhangjiakou Hebei 075000,China;Department of Obstetrics,The First Affiliated Hospital of Hebei North University,Zhangjiakou Hebei 075000,China)
出处
《中国医疗设备》
2020年第11期106-109,共4页
China Medical Devices
基金
河北省2020年度医学科学研究课题计划(20200201)。
关键词
时间—空间相关成像
组织多普勒成像
脐绕颈
心功能
spatiotemporal image correlation
tissue Doppler imaging
nuchal cord
ventricular function
