［Abstract］　Objective　To explore the value of Elastoscan for cervix(E-cervix) technique in the auxiliary diagnosis of cervical insufficiency in non-pregnant women. Methods　Forty-six cases of non-pregnant women with cervical insufficiency in our hospital from February 2018 to May 2018 were enrolled in the case group, while 73 normal non-pregnant women were enrolled in the control group during the same period. Three consecutive elastic images were obtained by transvaginal ultrasonography with the sagittal section of the cervix as the initial section. Elastic contrast index(ECI), hardness ratio(HR), internal and external ostium(IOS, EOS), IOS/EOS, and cervical length(CL) were automatically measured after the E-cervix software package was started, and the above parameters were compared between the two groups. The Receiver Operating Characteristic(ROC) Curve of the subjects was drawn to evaluate the diagnostic efficiency. Results　ECI of the case group was higher than that of the control group(P<0.05); HR of the case group was less than that of the control group(P<0.001); IOS and EOS of the case group were greater than those of the control group(P<0.001); CL of the case group was shorter than that of the control group(P<0.05). The results of ROC curve showed that HR was a sensitive single index for the diagnosis of cervical insufficiency in the non-pregnant women. Conclusion　Compared with normal women, the patients with cervical insufficiency have relatively soft and heterogeneous cervixes. E-cervix technique can be used as an important index for assistant diagnosis of cervical insufficiency in non-pregnant women.]]> 2019/9/2 14:45:32 ZHANG Li-he, XIE Hong-ning, ZHENG Qiao, et al. 5true ［Abstract］　Objective　To compare the diagnostic value of MRI, two dimensional ultrasound(2D-ultrasound) and three dimensional ultrasound(3D-ultrasoud) Smart-MSP(median sagittal plane) in dysplasia of the corpus callosum. Methods　Twenty fetuses suspected to have dysplasia of the corpus callosum by antenatal diagnosis with ultrasound were selected and performed prenatal examination using 2D-ultrasound, 3D-ultrasoud Smart-MSP and magnetic resonance imaging(MRI) respectively. The examination results were compared among the three methods, and the detection rate and the diagnostic accuracy rate were compared between the patients with MRI examination and the patients with 2D-ultrasound or 3D-ultrasoud Smart-MSP examination. Results　Compared with 2D-ultrasound, 3D-ultrasound Smart MSP had a significantly higher detection rate in diagnosis of dysplasia of the corpus callosum,including complete agenesis of the corpus callosum and partial agenesis of the corpus callosum（P<0.05）. The sensitivity, specificity of 3D-ultrasound Smart MSP were higher than those of 2D-ultrasound. 3D-ultrasound Smart MSP was in good agreement with MRI in diagnosing dysplasia of corpus callosum(Kappa=0.844 ). Conclusion　3D-ultrasound Smart MSP is close to MRI in diagnosing dysplasia of the corpus callosum and has high clinical application value.]]> 2019/9/2 14:45:32 LUO Huan-jia, TONG Tong, YI Yan, et al. 4true ［Abstract］　Pelvic floor ultrasound has become an important imaging examination method for diagnosis of female pelvic floor dysfunction disease. This review gives an overview of the anatomy of the pelvic floor, the dysfunction disease of the pelvic floor, the application and development of the pelvic floor ultrasound.]]> 2019/9/2 14:45:32 CHEN Hai-ning, ZHENG Hong-yu 3true ［Abstract］　Objective　To explore the clinical value of ultrasound in prenatal diagnosis and prognosis evaluation of fetal biliary abnormalities. Methods　A total of 56 cases with abnormal biliary system were diagnosed by prenatal ultrasound examination in our hospital from January 2010 to January 2018, and their prognoses were evaluated. The patients with good outcomes were followed up for 1 to 6 months after delivery. Results　The ultrasound investigation revealed fetal cholelithiasis in 31 cases, and choledochal cyst in 18 cases, but 3 cases of solitary gallbladder were undetected among whom amniocentesis indicated cystic fibrosis of gallbladder in 1 case. The ultrasonic results also showed one case of congenital endocardial cushion defect combined with gallbladder failed to display, 1 case of gallbladder bulge, 1 case of situs inversus(dextrocardia) with postpartum persistent jaundice and biliary atresia, and 1 case with a large cystic mass in the abdominal cavity which was diagnosed as a choledochal cyst. Conclusion　Currently, biliary screening has not been included in the scope of ultrasonic prenatal screening. Early diagnosis of biliary abnormalities by ultrasound can evaluate the prognosis, guide the clinical practice, reduce the rate of labor induction and improve the survival rate of newborns.]]> 2019/9/2 14:45:32 HU Yi, FENG Meng-juan, GUO Zhi-hai, et al. 2true ［Abstract］　Caesarean scar pregnancy(CSP) refers to the ectopic implantation of the pregnancy sac in the myometrium at the site of a previous caesarean scar. CSP is potentially life threatening, if it is not managed early and properly. It may lead to serious complications such as massive and uncontrolled vaginal bleeding and uterine rupture, which often results in subsequent loss of fertility even hysterectomy. Therefore, early diagnosis and management of CSP is very important. In this paper, we review the advances in pathogenesis, diagnosis and treatment of CSP.]]> 2019/9/2 14:45:32 ZHOU Xin, XIAO Ju-hua 1true