[Comparison of Doppler flow measurements of the arcuate artery and uterine artery in fetal growth retardation].
Transabdominal Doppler velocimetry in the arcuate arteries has been the widest used technique for the assessment of uterine perfusion despite theoretical and physiological drawbacks. The size of arcuate arteries is beyond the resolution of modern scanners. They represent terminal branches of the uterine vasculature and do not provide information regarding total uterine blood supply. Transvaginal Doppler velocimetry of the main uterine arteries on its course through the parametrium by means of a newly developed frontally radiating 240-degree "panorama" sector scanner promised a solution. The aim of the study was to compare the A/B ratios in both arteries (i.e. arcuate vs. main uterine) in pregnancies with a growth retarded fetus below the 10th percentile, as defined by ultrasound biometry. We wondered firstly which vessel better demonstrates velocity waveforms leading to growth retarded newborns defined by a birth weight beyond the 10th percentile (Hohenauer) and secondly, how frequently pathological A/B ratios in the uterine vessels are associated with pathological A/B ratios in the umbilical arteries. In 25 growth retarded fetuses (ultrasound biometry), we found more often pathological waveforms in the arcuate arteries (n = 20) than in the main uterine arteries (n = 18). Pathological waveforms in all three vessels (arcuate, main uterine, umbilical) were found in 12, in the arcuate and umbilical vessels in 13, and in the main uterine and in umbilical artery in 17 cases. Six fetuses were within the normal weight range at delivery indicating normal fetal growth. Pathological A/B ratios in the main uterine artery were more often associated with a growth retarded newborn.(ABSTRACT TRUNCATED AT 250 WORDS)
Deutinger
J
J
2. Univ.-Frauenklinik, Wien.
Rudelstorfer
R
R
Bernaschek
G
G
D000328:Adult; D001158:Arteries; D001783:Blood Flow Velocity; D005260:Female; D005317:Fetal Growth Retardation / Q000175:diagnosis*; D006801:Humans; D008431:Maternal-Fetal Exchange; D010920:Placenta / Q000098:blood supply; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D011296:Prenatal Diagnosis / Q000379:methods*; D014463:Ultrasonography / Q000379:methods*; D014469:Umbilical Arteries; D014599:Uterus / Q000098:blood supply
Vergleich von Doppler-Strömungsmessungen in Arteria arcuata und in Arteria uterina bei fetaler Wachstumsretardation.