Antenatal fetal blood flow in the descending aorta and in the umbilical vein and their ratio in normal pregnancy

H. Y. Chen, F. M. Chang, H. C. Huang, F. J. Hsieh, C. C. Lu

研究成果: Article同行評審

8 引文 斯高帕斯(Scopus)

摘要

One hundred and sixty sequential measurements of umbilical vein blood flow (UVBF) and descending aorta blood flow (DABF) in normal fetuses were performed in utero by the duplex real-time ultrasound and pulsed Doppler technique. Throughout pregnancy from 26 to 41 weeks the blood flow velocity of the umbilical vein (UV) and the descending aorta (DA) remained relatively constant, while the diameter of UV and DA, UVBF and DABF increased with advancing gestational age. Moreover, the UVBF-to-DABF ratio was nearly constant, with a mean value of 64% from 26 weeks onwards. The DABF-to-abdominal area (DABF-to-AA) ratio was constant throughout pregnancy, with a mean value of 7.0 ml/min/cm2. We call these two constants the umbilical-aortic index and descending-aortic index. These relationships may be of help in the diagnosis of intrauterine growth retardation and other fetal disorders.

原文English
頁(從 - 到)263-268
頁數6
期刊Ultrasound in Medicine and Biology
14
發行號4
DOIs
出版狀態Published - 1988

All Science Journal Classification (ASJC) codes

  • 生物物理學
  • 放射與超音波技術
  • 聲學與超音波

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