Doppler velocimetry of intraplacental fetal arteries

Fon Jou Hsieh, Pao Lin Kuo, Tsang Ming Ko, Fong Ming Chang, Hsi Yao Chen

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)


Doppler velocimetry of the umbilical and intraplacental fetal arteries was studied by color flow mapping in 39 normal pregnancies. The systolic-diastolic ratio (S/D) and pulsatility index of the intraplacental fetal artery downstream to the umbilical artery decreased significantly with advancing gestational age, and its S/Ds were persistently lower than those of the umbilical artery. The difference in the S/D between the umbilical artery and its intraplacental downstream branches decreased with advancing gestational age and approached zero as the pregnancy progressed to term. We conclude that intraplacental fetal arteries, possibly fetal arteries in main stem villi, can be imaged by color flow mapping and that there is a significant “resistance gradient” between the intraplacental fetal artery and the umbilical artery. Intraplacental fetal artery velocimetry using color flow mapping may give further insights into the umbilicalplacental circulation.

Original languageEnglish
Pages (from-to)478-482
Number of pages5
JournalObstetrics and Gynecology
Issue number3
Publication statusPublished - 1991 Mar

All Science Journal Classification (ASJC) codes

  • Obstetrics and Gynaecology


Dive into the research topics of 'Doppler velocimetry of intraplacental fetal arteries'. Together they form a unique fingerprint.

Cite this