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Journal of Diagnostic Medical Sonography
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Transvaginal Color Doppler Ultrasonography in the Evaluation of Placental Circulation

A Review

Kenna Ren

Advanced Placement Diagnostic Medical Sonography Program; Department of Diagnostic Imaging, College of Allied Health Sciences, Thomas Jefferson University, Philadelphia, Pennsylvania; APDMS, Department of Radiology-Ultrasound, Medical College Hospitals, 3300 Henry Avenue, Philadelphia, PA 19129.

Reva Curry, MeD, RDMS, RT

Advanced Placement Diagnostic Medical Sonography Program; Department of Diagnostic Imaging, College of Allied Health Sciences, Thomas Jefferson University, Philadelphia, Pennsylvania.

Transvaginal color Doppler sonography has provided the capability to qualitatively evaluate blood flow in small branches of the uterine arteries, umbilical cord arteries, and intraplacental fetal arteries in early pregnancy. Accurate identification of these small vessels and analysis of their flow characteristics have improved our understanding of the physiology and pathophysiology of early pregnancy that alters the umbilicaluteroplacental circulations. Further development of this technique may help to predict fetal outcome in highrisk pregnancies and in pregnancies with complications, such as intrauterine growth retardation, preeclampsia, and trophoblastic invasion.

Key Words: transvaginal sonography • color Doppler • placental • circulation

Journal of Diagnostic Medical Sonography, Vol. 8, No. 3, 131-135 (1992)
DOI: 10.1177/875647939200800304
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