Results 251 to 260 of about 65,877 (302)

Fetal Doppler echocardiography in pulmonary atresia

Journal of Ultrasound in Medicine, 1993
The prenatal diagnosis of pulmonary atresia is of particular importance because the affected neonate may be dependent on ductal blood flow to the lung, requiring urgent administration of prostaglandins. We review eight cases studied by ultrasonography in utero. Severe tricuspid regurgitation was present in six fetuses.
W G, Guntheroth, D R, Cyr, T, Winter, T, Easterling, L A, Mack   +4 more
openaire   +2 more sources

Doppler velocimetry of fetal pericardial fluid

International Journal of Gynecology & Obstetrics, 2009
AbstractObjectiveTo investigate the flow of normal fetal pericardial fluid (PF) with increasing gestational age using Doppler velocimetry.MethodNinety‐five fetuses between 18 and 37 weeks of gestation with PF within the normal range were studied. PF was measured in 4‐chamber view using M‐mode or real‐time ultrasound.
Orapun, Aoekkasit, Boonchai, Uerpairojkit   +1 more
openaire   +2 more sources

Placental and Fetal Doppler

2000
This comprehensive clinical textbook on Doppler assessment of placental and fetal circulation provides the foundation needed for the theoretical component of the Certificate of Competence in placental and fetal Doppler awarded by the International Society of Ultrasound in Obstetrics and Gynecology and the International Society of Perinatal Medicine ...
Kypros Nicolaides, G Rizzo
openaire   +3 more sources

Fetal cerebral Doppler in the recognition of fetal compromise

BJOG: An International Journal of Obstetrics & Gynaecology, 1993
ABSTRACTObjective To establish reference ranges for the human fetal middle cerebral artery pulsatility index (MCA PI) for the local obstetric population, and to compare computerised antenatal fetal heart rate (FHR) analysis with the MCA PI as indicators of fetal compromise.Design Prospective data collection for selected patients.Setting
R, Chandran, V, Serra-Serra, S M, Sellers, C W, Redman   +3 more
openaire   +2 more sources

Doppler investigation of the fetal circulation

jpme, 1991
Doppler ultrasound provides a non-invasive method for the study of fetal haemodynamics. Animal studies on effects of hypoxia have provided evidence of a redistribution of cardiac output to favour perfusion of the fetal heart, adrenals and brain, at the expense of the carcass, gut and kidneys.
S, Campbell, S, Vyas, K H, Nicolaides
openaire   +2 more sources

Technical Aspects of Fetal Doppler Measurements

Gynecologic and Obstetric Investigation, 1987
Doppler ultrasound may be a valuable tool in the estimation of fetal well-being. Nevertheless, a good understanding of the basic principles of ultrasound and the applied circuitry is necessary to obtain useful information. Some physical principles and limitations of ultrasound are discussed and the basics of the electronic devices are mentioned ...
C J, Ruissen, J M, van Vugt, H J, Hoogland, A P, Hoeks, J, de Haan   +4 more
openaire   +2 more sources

Fetal heartbeat Doppler transducer

The Journal of the Acoustical Society of America, 1986
A doppler transducer which is particularly well adapted for use in fetal heartbeat measurements is comprised of a piston type transducer with a pair of lenses, which together provide both a divergent acoustic pattern and a flat surface for good acoustic coupling between the transducer and the mother's abdomen.
openaire   +1 more source

CIRCULATORY DOPPLER PARAMETERS IN FETAL HYPOXAEMIA

Prenatal Diagnosis, 1996
A 32-year-old pregnant woman (gravida 1, para 0) was delivered at 27 weeks of gestation by elective Caesarean section because of regular fetal heart rate (FHR) decelerations. Doppler ultrasound assessment of the middle cerebral artery (MCA) and the ductus venosus (DV) showed pathological results, whereas the umbilical artery waveforms were normal ...
M, Gonser, W, Erz, R, Goelz, H B, Franz
openaire   +2 more sources

Fetal Doppler assessment in pregnancy

Best Practice & Research Clinical Obstetrics & Gynaecology
Fetal Doppler assessment plays a crucial role in monitoring the fetal well-being during pregnancy. This non-invasive technique assesses blood flow dynamics in key fetal vessels, namely the umbilical artery, middle cerebral artery, and ductus venosus.
Jose H. Ochoa, Daniel Cafici
openaire   +2 more sources

Fetal Doppler Assessment in Neonatal Care: Analysis of Fetal Doppler Abnormalities and Neonatal Outcomes

NeoReviews, 2019
Fetal Doppler ultrasonography provides an effective and noninvasive approach to identify circulatory abnormalities in the maternal-fetal circulation. It is invaluable to assess the hemodynamic status of the fetus under a wide range of physiologic, infectious, and abnormal anatomic conditions.
Nadia, Narendran, Kamran, Yusuf
openaire   +2 more sources