Reference ranges of Doppler parameters of foetal pulmonary artery segments between 19 and 39 weeks of gestation
File version
Author(s)
Araujo Junior, Edward
Martins, Wellington P
Cavalli, Ricardo Carvalho
Marcolin, Alessandra Cristina
Costa, Fabricio Da Silva
Quintana, Silvana Maria
Duarte, Geraldo
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Date
Size
File type(s)
Location
License
Abstract
Objective: To determine reference ranges of Doppler parameters of foetal pulmonary artery segments.Methods: A prospective cross-sectional study was conducted to evaluate 150 healthy singleton pregnancies between 19 and 39 weeks of gestation. The proximal, middle and distal segments of the foetal pulmonary artery were assessed. The following Doppler parameters were evaluated: pulsatility index (PI) and peak systolic velocity (PSV). The mean, standard deviation (SD) and maximum and minimum values were determined for each Doppler parameter. Pearsons correlation coefficient (r) was used to assess the correlation between the foetal pulmonary artery segments. Polynomial regression was performed, and adjustments were made using the coefficient of determination (R2).Results: The mean PI values (mean ± SD) in the proximal, middle and distal arterial segments were 2.99 ± 0.61, 2.25 ± 0.96 and 1.31 ± 0.58, respectively. The mean PSVs in the proximal, middle and distal segments were 50.68 ± 16.63, 24.396 ± 11.86 and 12.08 ± 3.66 cm/s, respectively. Significant differences were observed between the PI and PSV values from the different segments (p < 0.0001). A correlation between each Doppler parameter and gestational age was observed, and it was better represented using linear equations.Conclusion: We successfully determined the reference ranges for Doppler parameters of foetal pulmonary artery segments between 19 and 39 weeks of gestation.
Journal Title
The Journal of Maternal-Fetal & Neonatal Medicine
Conference Title
Book Title
Edition
Volume
29
Issue
1
Thesis Type
Degree Program
School
Publisher link
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement
Item Access Status
Note
Access the data
Related item(s)
Subject
Reproductive medicine
Science & Technology
Life Sciences & Biomedicine
Obstetrics & Gynecology
Doppler
foetus
Persistent link to this record
Citation
Herren, H; Araujo Junior, E; Martins, WP; Cavalli, RC; Marcolin, AC; Costa, FDS; Quintana, SM; Duarte, G, Reference ranges of Doppler parameters of foetal pulmonary artery segments between 19 and 39 weeks of gestation, The Journal of Maternal-Fetal & Neonatal Medicine, 2016, 29 (1), pp. 85-90