Publications by authors named "Tai-zhu Yang"
Late postpartum haemorrhage caused by placenta accreta accompanied by acquired uterine arteriovenous malformation.
Eur J Obstet Gynecol Reprod Biol
September 2019
[Value of Fetal Frontomaxillary Facial Angle in Diagnosing Fetal Chromosomal Aneuploidy at 11 to 13 Weeks of Gestation].
Sichuan Da Xue Xue Bao Yi Xue Ban
September 2018
Objective: To determine the value of fetal Frontomaxillary facial angle (FMFA) in diagnosing chromosomal aneuploidy at 11-13 weeks of pregnancy.
Methods: Singleton pregnancies were randomly selected from January 2015 to August 2016 in our hospital. The crown-rump length (CRL), nuchal translucency (NT) and FMFA of the fetuses were measured and recorded, followed by chromosomal tests.
[Perfusion Imaging of Ovarian Masses with Contrast-enhanced Ultrasonography].
Sichuan Da Xue Xue Bao Yi Xue Ban
July 2018
Objective: To determine the perfusion features of ovarian masses and their diagnostic value.
Methods: Contrast-enhanced ultrasonography (CEUS) of 81 ovarian masses were confirmed by surgical pathology. Time-intensity curves of perfusion were obtained for the interest areas of ovarian mass.
[Preliminary study of contrast-enhanced ultrasonography in the evaluation of angiogenesis in ovarian tumors].
Sichuan Da Xue Xue Bao Yi Xue Ban
November 2014
Objective: To investigate the role of contrast-enhanced ultrasonography (CEUS) with pulsed inversion harmonic imaging in the evaluation of angiogenesis in ovarian tumors.
Methods: Forty-two patients of ovarian tumor received CEUS examination, in which the rise time (RT), peak intensity (PI), area under the curve (AUC), time from peak to one half (TTH) and time to peak (TTP) of ovarian tumors were measured. The post- surgical specimens of ovarian tumors were analysed by the stain with polyclonal antibodies against vascular endothelial growth factor (VEGF) and CD34.
Fetus in fetu: From Prenatal Sonographic Diagnosis to Postnatal Confirmation.
Fetal Diagn Ther
December 2016
A case of prenatal sonographic diagnosis of fetus in fetu is described. Postnatal laparotomy was performed and the diagnosis was confirmed by pathological examination.
View Article and Find Full Text PDF[Diagnostic value of contrast-enhanced ultrasonography in ovarian tumors].
Sichuan Da Xue Xue Bao Yi Xue Ban
May 2013
Objective: To determine the value of contrast-enhanced ultrasonography (CEUS) in diagnosing ovarian tumors.
Methods: Both conventional ultrasonography (CUS) and CEUS were performed in 86 patients with ovarian masses. A total of 106 ovarian masses from those patients were examined for pathological changes.
[Comparative study of ultrasonography and magnetic resonance imaging in midline structures of fetal brain].
Sichuan Da Xue Xue Bao Yi Xue Ban
September 2012
Article Synopsis
- The study aimed to assess how accurately ultrasonography (US) and magnetic resonance imaging (MRI) identify issues in the midline structures of the fetal brain.
- Thirty-two fetuses were examined with both US and MRI, and results were compared with outcomes after birth or autopsy.
- The findings revealed that while US had a high accuracy rate of 93.8%, MRI proved to be more accurate at 100%, highlighting the importance of using both imaging methods in prenatal diagnostics.
[Diagnostic value of power Doppler ultrasonography for Sirenomelia Seguence in prenatal].
Sichuan Da Xue Xue Bao Yi Xue Ban
November 2011
Article Synopsis
- The study examines how power Doppler ultrasound can be used to diagnose Sirenomelia Sequence in fetuses by analyzing the abdominal aorta's characteristics.
- It compares the two-dimensional and three-dimensional power Doppler ultrasound images of fetuses with Sirenomelia to those of normal fetuses, highlighting differences in vascular structures.
- The findings indicate that specific changes in the abdominal aorta and its branches in Sirenomelia fetuses provide valuable diagnostic information for prenatal identification of this condition.
[Value of prenatal diagnosis of placenta previa with placenta increta by transabdominal color Doppler ultrasound].
Zhonghua Fu Chan Ke Za Zhi
December 2006
Objective: To assess the value of prenatal diagnosis of placenta previa with placenta increta by transabdominal color Doppler ultrasound.
Methods: Two hundred and fourteen patients with persistent placenta previa underwent transabdominal color Doppler ultrasound for the prenatal diagnosis of placenta increta in our hospital from June 2002 to June 2005. We prospectively followed up their clinical and pathological results.