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| Doppler Indices of Uterine Artery Doppler Velocimetry by Placental Location |
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| Sung Shik Han Sung Shik Han, M.D., Yong Won Park, M.D., Jae Sung Cho, M.D.,Hye Kyeung Kwon, M.D., Jae Wook Kim, M.D. |
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| Department of Obstetrics and Gynecology, College of Medicine, Yonsei University Seoul, Korea |
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| PURPOSE : Our purpose was to investigate the relation between the vascular resistance of uterine artery and placental
location, and to establish the reference value of Doppler index in uterine artery by placental location.
MATERIALS and METHODS : Placental location and flow velocity waveforms of both uterine arteries in 7,016 pregnant
women after 18 weeks gestation were examined using color Doppler ultrasonography. Placental location was
classified as central and lateral placenta and the uterine artery with lateral placenta were divided into ipsilateral
uterine artery(same side of the placenta) and contralateral uterine artery(opposite side of the placenta). The uterine
artery with central placenta was classified as the central uterine artery. Systolic-Diastolic ratio(S/D ratio) of
uterine arteries by gestational weeks were calculated and campared with the placental location and perinatal outcomes.
RESULTS : In the lateral placenta group, the S/D ratio of the contralateral uterine artery was higher than the ipsilateral
one(mean=2.08+0.34 Vs 1.89+0.34, p=0.0001). S/D ratio of the uterine artery decreased during second
trimester and the ratio after 27 weeks was a tendency to have a constant values(ipsilateral: 1.85+0.34, central:
1.96+0.40, contralateral: 2.01+0.54).
CONCLUSION : S/D ratio of the uterine artery was affected by placental location. So when we evaluate Doppler spectrum
of uterine artery, placental location should be considered and we established the reference value of Doppler
index of uterine artery by placental location. |
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| Keyword : Ultrasound(US), Doppler studies. Arteries, uterine. Placenta |
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pdf파일 : k20200193.pdf 
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> Journal > Journal Search 
Journal of Korean Society of Ultrasound in Medicine 2001 ; 20 (3) : p.193 - 199
