We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Fetal peripheral bronchial fluid flow during breathing movement in normal pregnancies: a preliminary study.
- Authors
Nakai, Y.; Nishio, J.; Mine, M.; Imanaka, M.; Ogita, S.
- Abstract
Objective To determine the fluid flow velocity waveforms in the fetal peripheral bronchus during fetal breathing movement by means of pulsed Doppler ultrasonography. Design A preliminary cross-sectional study. Subjects Twenty-eight normal pregnant women between 32 and 38 weeks of gestation. Methods Velocity waveforms from fetal peripheral respiratory fluid flow were acquired from the segmental bronchus (B[sub 6] or B[sub 8]) which runs along the segmental artery (A[sub 6] or A[sub 8]). The maximum velocity of the intrabronchial fluid flow and duration of inspiratory and expiratory phases were quantified. Results The flow velocity signal from the fluid in the fetal segmental bronchus of 17 of the 28 fetuses was detected. We observed two types of fetal breathing movement. Conclusion During fetal breathing movement, the fluid in the fetal respiratory tract moves in the fetal segmental bronchus. This movement can be detected by pulsed Doppler velocimetry aided by power Doppler ultrasonography.
- Subjects
RESPIRATION; FETAL monitoring; ULTRASONIC imaging; DOPPLER ultrasonography
- Publication
Ultrasound in Obstetrics & Gynecology, 1999, Vol 14, Issue 2, p110
- ISSN
0960-7692
- Publication type
Article
- DOI
10.1046/j.1469-0705.1999.14020110.x