To evaluate the clinical value of three dimensional ultrasonography (3DUS) in prenatal diagnosis, 134 pregnant women with high risk factors in second and third trimester were examined by 3DUS. The results showed tha...To evaluate the clinical value of three dimensional ultrasonography (3DUS) in prenatal diagnosis, 134 pregnant women with high risk factors in second and third trimester were examined by 3DUS. The results showed that 3DUS could provide more diagnostic information, exclude the abnormalities and enhance the confidence level of physician in 102 normal pregnant women. 3DUS was helpful in the diagnosis in 17 (60.7 %) of 28 cases of fetal anomalies. However, 3DUS was not useful in evaluating intrauterine growth retardation in 4 cases. It is conclucded that 3DUS is helpful in prenatal diagnosis.展开更多
Objective To observe the values of changes of right heart modified myocardial performance index(Mod-MPI)and ductus venosus(DV)spectrum parameters in pre-eclampsia fetuses for predicting adverse pregnancy outcomes.Meth...Objective To observe the values of changes of right heart modified myocardial performance index(Mod-MPI)and ductus venosus(DV)spectrum parameters in pre-eclampsia fetuses for predicting adverse pregnancy outcomes.Methods Eighty-one pregnant women diagnosed as pre-eclampsia were prospectively enrolled and divided into severe pre-eclampsia(SPE)group(n=39)and mild pre-eclampsia(MPE)group(n=42),while 85 healthy pregnant women were taken as controls(control group).Fetal right heart function parameters,including right ventricular isovolumetric relaxation time(IRT),isovolumetric contraction time(ICT),ejection time(ET),total spent time(TST),Mod-MPI,tricuspid valve peak flow velocity ratio in early and late diastole(TV-E/A),as well as blood flow velocities in each waveform of DV spectrum(S,V,D,and A wave)were obtained,and the pulsatility index(PI)and the ratio of blood flow velocities in each waveform of the DV(S/V,S/D,S/A,V/D,V/A,D/A)were calculated.Intrauterine fetal distress,preterm delivery,neonatal asphyxia and newborn with low weight were considered as adverse pregnancy outcomes.The correlations of right heart Mod-MPI and TV-E/A with DV parameters in pre-eclampsia fetuses were assessed,and their predictive efficacies for adverse pregnancy outcomes were evaluated for right heart Mod-MPI and DV using the receiver operating characteristics(ROC)and the area under the curves(AUC).Results Compared with control group and MPE group,fetal right heart IRT,ICT and Mod-MPI increased and ET decreased in SPE group(all P<0.05).No significant differences of right heart TST and TV-E/A among 3 groups(both P>0.05).Fetal DV A-wave velocity and V/D values progressively decreased but PI progressively increased in control,MPE and SPE groups(all P<0.05).Fetal right heart Mod-MPI in pre-eclampsia was moderately positively correlated with DV PI(r=0.637,P=0.016),while TV-E/A was weakly negatively correlated with DV V/D(r=-0.355,P=0.043).Adverse pregnancy outcomes were noticed in 59 pre-eclampsia cases.The AUC of fetal right heart Mod-MPI and DV PI for predicting adverse pregnancy outcomes in pre-eclampsia cases was 0.897 and 0.848,respectively,without significant difference(Z=0.460,P=0.400).Conclusion Changes of right heart Mod-MPI and DV spectrum parameters in pre-eclampsia fetuses had high value for predicting adverse pregnancy outcomes.展开更多
To investigate the clinical value of three dimensional ultrasonography (3DUS) in obstetrics, various 3DUS rendering methods including surface mode, transparent mode and multiplanar mode were employed to scan 30 fetus...To investigate the clinical value of three dimensional ultrasonography (3DUS) in obstetrics, various 3DUS rendering methods including surface mode, transparent mode and multiplanar mode were employed to scan 30 fetuses in second and third trimester by using the transabdominal volume transducer. The results showed that surface mode could vividly demonstrate the surface morphologic features of the fetuses, as well as the stereo shape and the spatial relationship among the surface structures. The face, limbs, umbilical cord and outer genitalia of the fetus could be well displayed by surface mode. Transparent mode could reveal the bony structures under the surface, such as ribs, vertebrae, crania, etc. The result was not affected by the sophisticated curvature of these bony structures and the success rate was up to 100 %. When rendered by multiplanar mode, the region of interest (ROI) could be viewed from different directions. It should be concluded that 3DUS could serve as a supplement to two dimensional ultrasonography (2DUS). 3DUS might play an important role in prenatal diagnosis and enhance the diagnostic confidence level of the physicians.展开更多
Objective: To study the value of detecting fetal congenital heart disease (CHD) using the five transverse planes technique of fetal echocardiography. Methods: Nine hundred and eighty-two high-risk pregnancies for feta...Objective: To study the value of detecting fetal congenital heart disease (CHD) using the five transverse planes technique of fetal echocardiography. Methods: Nine hundred and eighty-two high-risk pregnancies for fetal CHD were included in this study, the fetal heart was scanned with the five transverse planes technique of fetal echocardiography described by Yagel, autopsy was conducted when pregnancy was terminated. Blood from fetal heart was collected for fetal chromosome analysis. A close follow-up was given for normal fetal heart pregnancies and neonatal echocardiography was performed to check the accuracy of prenatal diagnosis. Results: (1) Forty-six cases (4.68%) were found to have fetal heart abnormalities in this study, 69.56% of them were diagnosed by single four-chamber view, another 30.43% fetal CHD were found by combining other views; (2) Forty-one parents of prenatal fetuses with CHD chose to terminate pregnancy, thirty-two of them gave consent to conduct autopsy, 93.75% of which yielded unanimous conclusion between prenatal fetal echocardiography and autopsy; (3) Thirty-two of 46 cases underwent fetal chromosome analysis, 8 cases (25%) were found to have abnormal chromosome; (4) Five cases were found to have right ventricle and atrium a little bigger than those on the left side, with the unequal condition being the same after birth, but there were no clinical manifestations and they are healthy for the time being; (5) Nine hundred and thirty-six cases were not found with abnormality in this study, but one case was diagnosed with ventricular septal defect after birth, one case was diagnosed with patent ductus arteriosus, one case had atrial septal defect after birth. Conclusions: (1) The detected CHD rate was 4.68% by screening fetal heart with five transverse planes according to Yagel’s description of high risk population basis for CHD. The coinciding rate of prenatal diagnosis and autopsy was 93.75%; (2) The sensitivity of detecting fetal heart abnormality is 92%, the specificity is 99.6% using the five transverse planes technique of fetal echocardiography; (3) Fetuses with mild or moderate disproportion of right and left side in the heart are potentially healthy babies.展开更多
目的观察右心室改良心肌做功指数(RV-Mod-MPI)评价产科抗磷脂综合征(OAPS)累及胎儿右心室功能的价值。方法前瞻性纳入45例OAPS孕妇(OAPS组)及60名健康孕妇(对照组),应用脉冲波多普勒(PW)分别采集胎儿三尖瓣、肺动脉瓣血流图像,获取其RV-...目的观察右心室改良心肌做功指数(RV-Mod-MPI)评价产科抗磷脂综合征(OAPS)累及胎儿右心室功能的价值。方法前瞻性纳入45例OAPS孕妇(OAPS组)及60名健康孕妇(对照组),应用脉冲波多普勒(PW)分别采集胎儿三尖瓣、肺动脉瓣血流图像,获取其RV-Mod-MPI;记录晚孕期孕妇及新生儿资料并进行组间比较,绘制受试者工作特征曲线,计算曲线下面积(AUC),评估以胎儿RV-Mod-MPI预测OAPS组不良妊娠结局的效能。结果相比对照组,OAPS组胎儿RV-Mod-MPI较高,新生儿出生体质量及出生后1 min Apgar评分较低,而不良妊娠结局发生率较高(P均<0.05)。以胎儿RV-Mod-MPI预测OAPS组不良妊娠结局的AUC为0.726。结论胎儿RV-Mod-MPI可用于评价OAPS累及胎儿右心室功能并预测不良妊娠结局。展开更多
独眼畸形通常由于胚胎两眼原基未完全分离或者前脑中部发育障碍,导致两侧原始视泡向中线融合引发,是前脑无裂畸形相关面部畸形中最严重的一种表现。报告1例妊娠16周独眼畸形死胎病例,该例孕妇妊娠14+3周时行胎儿颈后透明层检查发现头颅...独眼畸形通常由于胚胎两眼原基未完全分离或者前脑中部发育障碍,导致两侧原始视泡向中线融合引发,是前脑无裂畸形相关面部畸形中最严重的一种表现。报告1例妊娠16周独眼畸形死胎病例,该例孕妇妊娠14+3周时行胎儿颈后透明层检查发现头颅内异常液性暗区,妊娠终止后引产儿面部可见单眼眶及其上方的前额鼻肉柱,经基因组拷贝数变异测序(copy number variation sequencing,CNV-seq)分析发现染色体三倍体变异、嵌合比约32%的X染色体嵌合重复以及嵌合比约32%的Y染色体嵌合缺失。独眼畸形的病因具有异质性,目前其发病机制尚未明确,妊娠期影像学检查和产前诊断为常用检查方法,在诊断后应尽早终止妊娠,减轻孕妇身心损害及社会医疗经济负担。展开更多
目的本研究旨在综合分析胎儿主动脉缩窄(coarctation of the aorta,CoA)的相关超声心动图指标。方法回顾性分析2018年1月至2023年5月广东省人民医院产前超声心动图检查疑诊CoA存活胎儿204例的临床资料,提取产前超声心动图数据和患者资...目的本研究旨在综合分析胎儿主动脉缩窄(coarctation of the aorta,CoA)的相关超声心动图指标。方法回顾性分析2018年1月至2023年5月广东省人民医院产前超声心动图检查疑诊CoA存活胎儿204例的临床资料,提取产前超声心动图数据和患者资料。根据生后随访结果将研究对象分为真阳性组(A组)和假阳性组(B组)。通过Logistic回归分析筛选预测指标并建立确诊CoA列线图预测模型,按6:4随机将患者分为训练集和测试集,进行模型内部验证及效果评价。结果204例胎儿被纳入研究,其中A组95例(46.5%),B组109例(53.43%)。最终确定4个指标组成列线图模型,包括左心室Z值、主动脉远端横弓Z值、肺动脉主干与升主动脉比值、是否合并室间隔缺损。该模型具有一定预测能力和实用价值[曲线下面积(area under the curve,AUC)=0.888],在验证集中亦取得了良好的诊断效能(AUC=0.825),内部验证显示模型具有良好的预测能力和应用价值。结论本研究建立的列线图模型可作为应用简单且有效的工具,提高CoA的产前诊断准确性,促进围产期及生后的分层管理。展开更多
基金This project was a science research- planning schemesponsored by Educational Committee of Hubei Province (No.99C0 6 9) and a fifth Three- year Research- planning Schemeof Medicine sponsored by Hubei Provincial Health Bureau(Serial No.WJ0 15 19)
文摘To evaluate the clinical value of three dimensional ultrasonography (3DUS) in prenatal diagnosis, 134 pregnant women with high risk factors in second and third trimester were examined by 3DUS. The results showed that 3DUS could provide more diagnostic information, exclude the abnormalities and enhance the confidence level of physician in 102 normal pregnant women. 3DUS was helpful in the diagnosis in 17 (60.7 %) of 28 cases of fetal anomalies. However, 3DUS was not useful in evaluating intrauterine growth retardation in 4 cases. It is conclucded that 3DUS is helpful in prenatal diagnosis.
文摘Objective To observe the values of changes of right heart modified myocardial performance index(Mod-MPI)and ductus venosus(DV)spectrum parameters in pre-eclampsia fetuses for predicting adverse pregnancy outcomes.Methods Eighty-one pregnant women diagnosed as pre-eclampsia were prospectively enrolled and divided into severe pre-eclampsia(SPE)group(n=39)and mild pre-eclampsia(MPE)group(n=42),while 85 healthy pregnant women were taken as controls(control group).Fetal right heart function parameters,including right ventricular isovolumetric relaxation time(IRT),isovolumetric contraction time(ICT),ejection time(ET),total spent time(TST),Mod-MPI,tricuspid valve peak flow velocity ratio in early and late diastole(TV-E/A),as well as blood flow velocities in each waveform of DV spectrum(S,V,D,and A wave)were obtained,and the pulsatility index(PI)and the ratio of blood flow velocities in each waveform of the DV(S/V,S/D,S/A,V/D,V/A,D/A)were calculated.Intrauterine fetal distress,preterm delivery,neonatal asphyxia and newborn with low weight were considered as adverse pregnancy outcomes.The correlations of right heart Mod-MPI and TV-E/A with DV parameters in pre-eclampsia fetuses were assessed,and their predictive efficacies for adverse pregnancy outcomes were evaluated for right heart Mod-MPI and DV using the receiver operating characteristics(ROC)and the area under the curves(AUC).Results Compared with control group and MPE group,fetal right heart IRT,ICT and Mod-MPI increased and ET decreased in SPE group(all P<0.05).No significant differences of right heart TST and TV-E/A among 3 groups(both P>0.05).Fetal DV A-wave velocity and V/D values progressively decreased but PI progressively increased in control,MPE and SPE groups(all P<0.05).Fetal right heart Mod-MPI in pre-eclampsia was moderately positively correlated with DV PI(r=0.637,P=0.016),while TV-E/A was weakly negatively correlated with DV V/D(r=-0.355,P=0.043).Adverse pregnancy outcomes were noticed in 59 pre-eclampsia cases.The AUC of fetal right heart Mod-MPI and DV PI for predicting adverse pregnancy outcomes in pre-eclampsia cases was 0.897 and 0.848,respectively,without significant difference(Z=0.460,P=0.400).Conclusion Changes of right heart Mod-MPI and DV spectrum parameters in pre-eclampsia fetuses had high value for predicting adverse pregnancy outcomes.
基金This project was a science research- planning scheme sponsored by Educational Com mittee of Hubei Province (No:99C0 6 9)
文摘To investigate the clinical value of three dimensional ultrasonography (3DUS) in obstetrics, various 3DUS rendering methods including surface mode, transparent mode and multiplanar mode were employed to scan 30 fetuses in second and third trimester by using the transabdominal volume transducer. The results showed that surface mode could vividly demonstrate the surface morphologic features of the fetuses, as well as the stereo shape and the spatial relationship among the surface structures. The face, limbs, umbilical cord and outer genitalia of the fetus could be well displayed by surface mode. Transparent mode could reveal the bony structures under the surface, such as ribs, vertebrae, crania, etc. The result was not affected by the sophisticated curvature of these bony structures and the success rate was up to 100 %. When rendered by multiplanar mode, the region of interest (ROI) could be viewed from different directions. It should be concluded that 3DUS could serve as a supplement to two dimensional ultrasonography (2DUS). 3DUS might play an important role in prenatal diagnosis and enhance the diagnostic confidence level of the physicians.
基金Project supported by the Start-up Fund for Study-abroad Returnee, Ministry of Education, China
文摘Objective: To study the value of detecting fetal congenital heart disease (CHD) using the five transverse planes technique of fetal echocardiography. Methods: Nine hundred and eighty-two high-risk pregnancies for fetal CHD were included in this study, the fetal heart was scanned with the five transverse planes technique of fetal echocardiography described by Yagel, autopsy was conducted when pregnancy was terminated. Blood from fetal heart was collected for fetal chromosome analysis. A close follow-up was given for normal fetal heart pregnancies and neonatal echocardiography was performed to check the accuracy of prenatal diagnosis. Results: (1) Forty-six cases (4.68%) were found to have fetal heart abnormalities in this study, 69.56% of them were diagnosed by single four-chamber view, another 30.43% fetal CHD were found by combining other views; (2) Forty-one parents of prenatal fetuses with CHD chose to terminate pregnancy, thirty-two of them gave consent to conduct autopsy, 93.75% of which yielded unanimous conclusion between prenatal fetal echocardiography and autopsy; (3) Thirty-two of 46 cases underwent fetal chromosome analysis, 8 cases (25%) were found to have abnormal chromosome; (4) Five cases were found to have right ventricle and atrium a little bigger than those on the left side, with the unequal condition being the same after birth, but there were no clinical manifestations and they are healthy for the time being; (5) Nine hundred and thirty-six cases were not found with abnormality in this study, but one case was diagnosed with ventricular septal defect after birth, one case was diagnosed with patent ductus arteriosus, one case had atrial septal defect after birth. Conclusions: (1) The detected CHD rate was 4.68% by screening fetal heart with five transverse planes according to Yagel’s description of high risk population basis for CHD. The coinciding rate of prenatal diagnosis and autopsy was 93.75%; (2) The sensitivity of detecting fetal heart abnormality is 92%, the specificity is 99.6% using the five transverse planes technique of fetal echocardiography; (3) Fetuses with mild or moderate disproportion of right and left side in the heart are potentially healthy babies.
文摘目的观察右心室改良心肌做功指数(RV-Mod-MPI)评价产科抗磷脂综合征(OAPS)累及胎儿右心室功能的价值。方法前瞻性纳入45例OAPS孕妇(OAPS组)及60名健康孕妇(对照组),应用脉冲波多普勒(PW)分别采集胎儿三尖瓣、肺动脉瓣血流图像,获取其RV-Mod-MPI;记录晚孕期孕妇及新生儿资料并进行组间比较,绘制受试者工作特征曲线,计算曲线下面积(AUC),评估以胎儿RV-Mod-MPI预测OAPS组不良妊娠结局的效能。结果相比对照组,OAPS组胎儿RV-Mod-MPI较高,新生儿出生体质量及出生后1 min Apgar评分较低,而不良妊娠结局发生率较高(P均<0.05)。以胎儿RV-Mod-MPI预测OAPS组不良妊娠结局的AUC为0.726。结论胎儿RV-Mod-MPI可用于评价OAPS累及胎儿右心室功能并预测不良妊娠结局。
文摘独眼畸形通常由于胚胎两眼原基未完全分离或者前脑中部发育障碍,导致两侧原始视泡向中线融合引发,是前脑无裂畸形相关面部畸形中最严重的一种表现。报告1例妊娠16周独眼畸形死胎病例,该例孕妇妊娠14+3周时行胎儿颈后透明层检查发现头颅内异常液性暗区,妊娠终止后引产儿面部可见单眼眶及其上方的前额鼻肉柱,经基因组拷贝数变异测序(copy number variation sequencing,CNV-seq)分析发现染色体三倍体变异、嵌合比约32%的X染色体嵌合重复以及嵌合比约32%的Y染色体嵌合缺失。独眼畸形的病因具有异质性,目前其发病机制尚未明确,妊娠期影像学检查和产前诊断为常用检查方法,在诊断后应尽早终止妊娠,减轻孕妇身心损害及社会医疗经济负担。
文摘目的本研究旨在综合分析胎儿主动脉缩窄(coarctation of the aorta,CoA)的相关超声心动图指标。方法回顾性分析2018年1月至2023年5月广东省人民医院产前超声心动图检查疑诊CoA存活胎儿204例的临床资料,提取产前超声心动图数据和患者资料。根据生后随访结果将研究对象分为真阳性组(A组)和假阳性组(B组)。通过Logistic回归分析筛选预测指标并建立确诊CoA列线图预测模型,按6:4随机将患者分为训练集和测试集,进行模型内部验证及效果评价。结果204例胎儿被纳入研究,其中A组95例(46.5%),B组109例(53.43%)。最终确定4个指标组成列线图模型,包括左心室Z值、主动脉远端横弓Z值、肺动脉主干与升主动脉比值、是否合并室间隔缺损。该模型具有一定预测能力和实用价值[曲线下面积(area under the curve,AUC)=0.888],在验证集中亦取得了良好的诊断效能(AUC=0.825),内部验证显示模型具有良好的预测能力和应用价值。结论本研究建立的列线图模型可作为应用简单且有效的工具,提高CoA的产前诊断准确性,促进围产期及生后的分层管理。
