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Copyright of Journal of Kunming Medical University / Kunming Yike Daxue Xuebao is the property of Kunming Medical Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: To investigate the efficacy of two-dimensional ( 2D) ultrasound combined with three-dimensional (3D) ultrasonic free anatomical imaging (Omni View) technology in the treatment of fetal cleft lip and palate. Methods 37 434 pregnant women who underwent prenatal ultrasound examination in the Affiliated Hospital of Yunnan University from January 2018 to December 2022 were selected as study subjects. All pregnant women were examined by 2D ultrasound alone and combined with 3D OmniView. Taking the results of natural delivery or induced labor as the gold standard， the diagnostic accuracy of 2D ultrasound and 2D ultrasound combined with 3D Omni View of fetal cleft lip and palate was compared. ResultsA total of 70 cases of fetal cleft lip and palate were confirmed by natural delivery or labor induction，53 cases were confirmed by 2D ultrasound， and 64 cases were confirmed by 2D ultrasound combined with 3D Omni View technology，the difference between the two was statistically significant (χ2 = 6.295，P = 0.012) . Conclusion2D ultrasound combined with threedimensional Omni View，which can visually display the location of lesions and significantly improve the detection rate of fetal cleft lip and palate，can help clinicians in evaluation and consultation of pregnant women. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Kunming Medical University / Kunming Yike Daxue Xuebao is the property of Kunming Medical Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: To analyze the diagnostic value of different sections of echocardiography in fetal congenital vascular ring (CVR). Methods: The echocardiography data and follow-up results of 60 cases of CVR diagnosed in Yunnan University Hospital from January 2018 to January 2021 were retrospectively analyzed. The three vessel trachea section (3VT), the descending arch coronal section and the three vessel pulmonary artery branch section were observed. The ultrasonographic characteristics of CVR in 3VT, coronal section of descending arch and three-vessel pulmonary artery branch were summarized. The diagnosis of CVR in 3VT, 3VT + descending arch coronal section, 3VT + descending arch coronal section + three-vessel pulmonary artery branch section was compared. Results: Among 60 cases of CVR diagnosed by echocardiography, 59 cases were confirmed to be CVR (accuracy rate 98.3%), and 1 case was misdiagnosed (misdiagnosis rate 1.7%), which was confirmed by pathological autopsy after labor induction, postpartum echocardiography, CT or MRI follow-up. The diagnostic rate of 3VT + descending arch coronal section + three-vessel pulmonary artery branch section was higher than that of 3VT and 3VT + descending arch coronal section (P < 0.05), and the diagnostic rate of 3VT + descending arch coronal section was higher than that of 3VT (P < 0.05). Conclusion: 3VT + coronal section of descending arch + threevessel section of pulmonary artery branch is an important section for the diagnosis of fetal CVR, with high diagnostic accuracy and important clinical application value. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Kunming Medical University / Kunming Yike Daxue Xuebao is the property of Kunming Medical Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To analyze the value of echocardiography in the diagnosis of fetal tetralogy of Fallot（TOF). Methods 558 pregnant women who underwent fetal echocardiography in the department of ultrasound of the Second People's Hospital of Yunnan Province from January 2017 to June 2019 were selected as the research objects. The pathological anatomy after the induction of labor and the results of postpartum echocardiography follow-up were as used the gold standard to calculate the prenatal echocardiography. The diagnosis sensitivity，specificity，accuracy rate were shown, and the sound image characteristics of TOF were analyzed. Results A total of 558 pregnant women underwent the echocardiographic examination. After the induction of labor, pathological anatomy and postpartum echocardiographic follow-up results confirmed a total of 25 cases of TOF fetus. Prenatal echocardiography detected 26 cases of TOF fetus, 20 cases of typical TOF with pulmonary artery stenosis, 3 cases of pulmonary atresia with ventricular septal defect, 2 cases of TOF with absent pulmonary valve, 2 cases of misdiagnosis, and 1 case of missed diagnosis. The diagnostic sensitivity，specificity，accuracy，misdiagnosis rate and missed diagnosis rate of prenatal echocardiography were approximately 96%（24/25)， 99.62%（531/533)， 99.46%（555/558)，0.38%（2/533) and 4%（1/25)，respectively. It is mainly characterized by ventricular septal defect，aortic straddling，pulmonary artery stenosis，atresia，and absence of pulmonary valve. Conclusion Prenatal fetal echocardiography is the most important imaging method for the diagnosis of TOF，and it has important clinical guiding significance for evaluating the prognosis of the fetus. [ABSTRACT FROM AUTHOR]

Objective　To analyze the application value of ultrasound scoring combined with enhanced flow in dangerous placenta previa（ PPP） combined with placenta accreta， in order to improve the ultrasonic diagnosis accuracy of PPP combined with placenta accreta. Methods　From January 2017 to June 2019，60 cases of pregnant and lying-in women with suspected PPP combined placental implantation in the Second People's Hospital of Yunnan Province were studied. Two-dimensional， ultrasound scoring and e-flow examination methods were routinely used in all pregnant women for the classification of PPP combined with placental implantation. Clinical surgery and pathological results were used as the gold standard for comparison， and the diagnostic efficacy of ultrasound scoring， e-flow and ultrasound scoring combined with e-flow for PPP combined with placental implantation was compared. Results　Among 60 pregnant women with suspected PPP combined with placental implantation， the sensitivity of ultrasound scoring combined with e-flow was higher than that of ultrasound scoring （P < 0.05） . The accuracy of ultrasonic scoring combined with E-flow was higher than that of ultrasonic scoring combined with e-flow （P < 0.05）. The diagnostic efficiency of ultrasound scoring combined with e-flow in PPP with placental implantation was higher than that of single ultrasound scoring or e-flow. Conclusion　Ultrasound scoring combined with E-flow has a higher diagnostic efficiency in the diagnosis of PPP combined with placental implantation. It is a combined examination method to promote the value and can provide guidance for clinical treatment. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Kunming Medical University / Kunming Yike Daxue Xuebao is the property of Kunming Medical Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Kunming Medical University / Kunming Yike Daxue Xuebao is the property of Kunming Medical Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)