|
KMID : 0361719900010010058
|
|
Korean Journal of perinatology
1990 Volume.1 No. 1 p.58 ~ p.62
|
|
|
ANALYSIS OF DOPPLER UMBILICAL ARTERY VELOCIMETRY ACCORDING TO DIFFERENT SAMLING SITES
|
|
|
|
|
Abstract
|
|
|
|
Fetal umbilical arterial systolic/ diastolic (S / D) ratios are said to be uniform throughout the umbilical cord except for the fetal abdominal portion due to "entrance region" phenomenon. This study was undertaken at YUMC in order to evaluated this uniformity by duplex Doppler on 46 fetuses at three sites:near the placenta, at the free floating midportion, and near the fetal abdomen. Nine of 46 fetuses examined(20%) demonstrated pronounced nonuniformity of the S / D ratio with a discrepancy of 1 or greater at two different sites of S / D measurements. Studies demonstrated the highest S / D ratio and RI (resistance index) at fetal abdominal wall and lowest values were observed at the placental origin. These results suggest that S / D ratio and RI of the umbilical arterial flow velocity waveforms are not uniform throughout the cord. This sitedependent difference in S / D ratio,RI could be clinically important. Therefore one could not achieve an accurate information for fetal wellbeing by measuring S / D ratio and RI at only one site of the umbilical cord.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
  
|