Technical aspects of fetal Doppler measurements.
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. Furthermore, the parameters used in obstetrical investigations are reviewed.
D005323:Fetal Monitoring / Q000379:methods*; D006801:Humans; D014465:Ultrasonics