Noninvasive verification of fetal respiratory movements in normal pregnancy.
A newly developed high-speed ultrasound imaging system enabled accurate observations to be made of fetal respiratory movements in utero. Visual monitoring of data acquisition eliminated artifactual recording.
D005260:Female; D005323:Fetal Monitoring; D005333:Fetus / Q000502:physiology*; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D012119:Respiration; D014465:Ultrasonics / Q000295:instrumentation