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https://hdl.handle.net/2440/137422
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Type: | Journal article |
Title: | Shear wave velocity measurement of the placenta is not limited by placental location |
Author: | Edwards, C. Cavanagh, E. Kumar, S. Clifton, V.L. Borg, D.J. Priddle, J. Wille, M.L. Drovandi, C. Fontanarosa, D. |
Citation: | Placenta, 2023; 131:23-27 |
Publisher: | Elsevier |
Issue Date: | 2023 |
ISSN: | 0143-4004 1532-3102 |
Statement of Responsibility: | Christopher Edwards, Erika Cavanagh, Sailesh Kumar, Vicki L. Clifton b, c, Danielle J. Borg, Jacob Priddle, Marie-Luise Wille, Christopher Drovandi, Davide Fontanarosa |
Abstract: | Introduction: Ultrasound elastography shows diagnostic promise via the non-invasive determination of placental elastic properties. A limitation is a potential for inadequate measurements from posterior placentae. This study aimed to analyse placental position’s influence on measures of shear wave elastography (SWV). Methods: SWV elastography measurements were obtained via ultrasound at 24, 28 and 36 weeks gestation from 238 pregnancies. . The placental position was labelled as either anterior, posterior or fundal/lateral. Average SWV measurements (m/s) and the corresponding standard deviations (SD) were used for data analysis. Results: There was a statistically significant difference between SWV recorded from anterior (1.33 ± 0.19)m/s and posterior (1.39 ± 0.18)m/s placentae (p < 0.001). However, the average sampling depth between these groups was significantly different (3.98 cm vs. 5.38 cm, p < 0.001). There was no statistically significant difference between SWV when measurements were compared at similar depths, regardless of placental location. The addition of placental position to a previously developed mixed-effects model confirmed placental position did not result in improved SWV measurements. In this model, sampling depth remained the best predictor for SWV. Conclusions: This study showed that placental position does not influence the accuracy or reliability of SWV. |
Keywords: | Placenta Humans Ultrasonography Reproducibility of Results Gestational Age Pregnancy Female Elasticity Imaging Techniques |
Rights: | © 2022 Elsevier Ltd. All rights reserved. |
DOI: | 10.1016/j.placenta.2022.11.016 |
Grant ID: | NHMRC |
Published version: | http://dx.doi.org/10.1016/j.placenta.2022.11.016 |
Appears in Collections: | Obstetrics and Gynaecology publications |
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