Doppler ultrasound studies of human fetal blood flow.
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چکیده
منابع مشابه
Biological Effect of Modern Fetal Ultrasound Techniques on Human Dermal Fibroblast Cells
Background: Diagnostic ultrasound has been used to detect human disease especially fetus abnormalities in recent decades. Although the harmful effects of diagnostic ultrasound on human have not been established so far, several researchers showed it has had bioeffects in cell lines and in experimental animals. Three-dimensional (3D), four-dimensional (4D), and color Doppler sonography are new te...
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Accurate assessment of gestational age, fetal growth, and the detection of fetal and placental abnormalities are major benefits of sonography. Color Doppler can be used to assist in the identification of vascular architecture, detection of vascular pathology and visualization of blood flow changes associated with physiologic processes and disease states. The clinical applications of obstetrical...
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Background. Doppler ultrasound has been used to assess abdominal aortic and umbilical blood flows in the human fetus, but the accuracy of this approach has not been demonstrated in an animal model. Methods and Results. We compared abdominal aortic and umbilical blood flows determined by Doppler echocardiography in 12 fetal lambs with invasive flow measurements using radionuclidelabeled microsph...
متن کاملDoppler echocardiographic assessment of fetal descending aortic and umbilical blood flows. Validation studies in fetal lambs.
BACKGROUND Doppler ultrasound has been used to assess abdominal aortic and umbilical blood flows in the human fetus, but the accuracy of this approach has not been demonstrated in an animal model. METHODS AND RESULTS We compared abdominal aortic and umbilical blood flows determined by Doppler echocardiography in 12 fetal lambs with invasive flow measurements using radionuclide-labeled microsp...
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Objective Antenatal anxiety or maternal stress is a prevalent chronic mental disorder in pregnant women. We assessed the effect of maternal stress because of positive aneuploidy screening results on the alteration of uterine artery’s blood flow. MaterialsAndMethods A prospective cohort (one sample) study as a pilot study was done at a hospital in Tehran. Sixty pregnant women who were candidates...
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عنوان ژورنال:
- Circulation
دوره 80 6 شماره
صفحات -
تاریخ انتشار 1989