title: A new technique for improving the Doppler ultrasound signal for fetal heart rate monitoring.
abstract: A new Doppler technique, termed ranged directional Doppler, has been developed. This system detects a more unique Doppler signal, which is more clearly related to a cardiac event. This signal provides the opportunity for further improving the accuracy of fetal heart rate monitoring from the maternal abdominal wall.
mesh_terms: D004301:Doppler Effect; D005260:Female; D005318:Fetal Heart / Q000502:physiology*; D006339:Heart Rate; D006801:Humans; D008722:Methods; D008991:Monitoring, Physiologic; D011247:Pregnancy; D014463:Ultrasonography