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Measurement of elasticity of normal placenta using the Virtual Touch quantification technique
PURPOSE: The aim of this study was to measure the elasticity of normal placentas using the Virtual Touch quantification (VTQ) technique. METHODS: This study was approved by the Institutional Ethics Committee. Fifty randomly selected, healthy pregnant women in their second trimester and 50 randomly s...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Korean Society of Ultrasound in Medicine
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4939723/ https://www.ncbi.nlm.nih.gov/pubmed/27184654 http://dx.doi.org/10.14366/usg.16002 |
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author | Wu, Size Nan, Ruixia Li, Yueping Cui, Xiaojing Liang, Xian Zhao, Yanan |
author_facet | Wu, Size Nan, Ruixia Li, Yueping Cui, Xiaojing Liang, Xian Zhao, Yanan |
author_sort | Wu, Size |
collection | PubMed |
description | PURPOSE: The aim of this study was to measure the elasticity of normal placentas using the Virtual Touch quantification (VTQ) technique. METHODS: This study was approved by the Institutional Ethics Committee. Fifty randomly selected, healthy pregnant women in their second trimester and 50 randomly selected, healthy pregnant women in their third trimester with a single fetus were included, and their placentas underwent VTQ through shear wave velocity (SWV) measurements. The measurements were performed at different locations to sample different areas of the placenta. Measurements were performed 3-4 times in each location, the mean shear wave velocities were calculated without the highest and lowest values of measurements in each region, and the results were compared. RESULTS: The SWV of the placenta was 0.983±0.260 m/sec, and the minimal and maximal speed was 0.63 m/sec and 1.84 m/sec, respectively. There was no significant difference between the second and third trimester of VTQ of the placenta in terms of SWV (0.978±0.255 m/sec vs. 0.987±0.266 m/sec, P=0.711). The maternal age between second and third trimester was 27.9±4.3 years and 29.2±4.4 years, respectively; there was no significant difference between them (P=0.159). CONCLUSION: The results of this study show that the SWV of normal placenta tissue is 0.983±0.260 m/sec, it has little variation between the second and third trimesters, and the VTQ technique may potentially play an additional role in placenta evaluation. |
format | Online Article Text |
id | pubmed-4939723 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Korean Society of Ultrasound in Medicine |
record_format | MEDLINE/PubMed |
spelling | pubmed-49397232016-07-12 Measurement of elasticity of normal placenta using the Virtual Touch quantification technique Wu, Size Nan, Ruixia Li, Yueping Cui, Xiaojing Liang, Xian Zhao, Yanan Ultrasonography Original Article PURPOSE: The aim of this study was to measure the elasticity of normal placentas using the Virtual Touch quantification (VTQ) technique. METHODS: This study was approved by the Institutional Ethics Committee. Fifty randomly selected, healthy pregnant women in their second trimester and 50 randomly selected, healthy pregnant women in their third trimester with a single fetus were included, and their placentas underwent VTQ through shear wave velocity (SWV) measurements. The measurements were performed at different locations to sample different areas of the placenta. Measurements were performed 3-4 times in each location, the mean shear wave velocities were calculated without the highest and lowest values of measurements in each region, and the results were compared. RESULTS: The SWV of the placenta was 0.983±0.260 m/sec, and the minimal and maximal speed was 0.63 m/sec and 1.84 m/sec, respectively. There was no significant difference between the second and third trimester of VTQ of the placenta in terms of SWV (0.978±0.255 m/sec vs. 0.987±0.266 m/sec, P=0.711). The maternal age between second and third trimester was 27.9±4.3 years and 29.2±4.4 years, respectively; there was no significant difference between them (P=0.159). CONCLUSION: The results of this study show that the SWV of normal placenta tissue is 0.983±0.260 m/sec, it has little variation between the second and third trimesters, and the VTQ technique may potentially play an additional role in placenta evaluation. Korean Society of Ultrasound in Medicine 2016-07 2016-04-02 /pmc/articles/PMC4939723/ /pubmed/27184654 http://dx.doi.org/10.14366/usg.16002 Text en Copyright © 2016 Korean Society of Ultrasound in Medicine (KSUM) This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Wu, Size Nan, Ruixia Li, Yueping Cui, Xiaojing Liang, Xian Zhao, Yanan Measurement of elasticity of normal placenta using the Virtual Touch quantification technique |
title | Measurement of elasticity of normal placenta using the Virtual Touch quantification technique |
title_full | Measurement of elasticity of normal placenta using the Virtual Touch quantification technique |
title_fullStr | Measurement of elasticity of normal placenta using the Virtual Touch quantification technique |
title_full_unstemmed | Measurement of elasticity of normal placenta using the Virtual Touch quantification technique |
title_short | Measurement of elasticity of normal placenta using the Virtual Touch quantification technique |
title_sort | measurement of elasticity of normal placenta using the virtual touch quantification technique |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4939723/ https://www.ncbi.nlm.nih.gov/pubmed/27184654 http://dx.doi.org/10.14366/usg.16002 |
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