Establishment of a New Equation for Ultrasonographic Estimated Foetal Weight in Chongqing: A Prospective Study
Background: Variations in foetal growth between populations should not be ignored, and a single universal standard is not appropriate for everyone. Therefore, it is necessary to develop a new ultrasound estimation equation that adapts better to regional population characteristics. The purpose of thi...
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| Format: | Article |
| Language: | English |
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IMR Press
2022-12-01
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| Series: | Clinical and Experimental Obstetrics & Gynecology |
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| Online Access: | https://www.imrpress.com/journal/CEOG/49/12/10.31083/j.ceog4912271 |
| _version_ | 1828085589476376576 |
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| author | Chenhuizi Wu Jianfeng Sun XiaoJing Dong Liuyun Cai Xinru Deng Fenglan Zhang Yang Shu Maochao Zhang Xiaodong Luo |
| author_facet | Chenhuizi Wu Jianfeng Sun XiaoJing Dong Liuyun Cai Xinru Deng Fenglan Zhang Yang Shu Maochao Zhang Xiaodong Luo |
| author_sort | Chenhuizi Wu |
| collection | DOAJ |
| description | Background: Variations in foetal growth between populations should not be ignored, and a single universal standard is not appropriate for everyone. Therefore, it is necessary to develop a new ultrasound estimation equation that adapts better to regional population characteristics. The purpose of this study was to create a new equation for ultrasound estimation of foetal weight according to the local population in Chongqing and compare it with representative equations. Methods: This prospective study included data on pregnant women who gave birth to a child at full term in our hospital from December 2016 to November 2019. Foetal ultrasound parameters included biparietal diameter (BPD), head circumference (HC), abdominal circumference (AC), and femur diaphysis length (FDL). The foetal weight compensation model was established by using the second-order linear regression model, and then, the foetal weight equation was established by utilizing the multiple reverse elimination regression technique. Last, the absolute error and relative error were used to compare the accuracy of the equations established in this study with representative equations. Results: Through the foetal weight compensation equation, the new equation suitable for Chongqing foetuses was successfully established with the variables of BPD, HC, AC, and FDL. The following foetal weight prediction equation was established in this study: Log10(EFW) = 3.002741 + 0.00005944 × (BPD2) + 0.00000222 × (HC2) – 0.000002078 × (AC2) + 0.00004262 × (FDL2) – 0.008753 × BPD – 0.000884 × HC + 0.003206 × AC – 0.002894 × FDL (BPD: mm; HC: mm; AC: mm; FDL: mm). In the sets established by the 1925 data, the mean absolute error and standard deviation of the estimation error of the new equation were 178.9 g and 140.3 g respectively. In the validation sets established with 300 data points, the mean absolute error and standard deviation of the new equation were 173.08 g and 128.59 g respectively. Compared with representative equations, the mean absolute error and the standard deviation of the new equation were the lowest. The equation established in this study better predicted foetal weight (p < 0.001). Conclusions: According to the local population characteristics of Chongqing, this study created a foetal weight estimation equation that is more accurate and suitable. This equation is clinically valuable for the monitoring and management of foetal weight. |
| first_indexed | 2024-04-11T04:40:40Z |
| format | Article |
| id | doaj.art-e8b09dd6234f4115a5277c0ecb2eb3e3 |
| institution | Directory Open Access Journal |
| issn | 0390-6663 |
| language | English |
| last_indexed | 2024-04-11T04:40:40Z |
| publishDate | 2022-12-01 |
| publisher | IMR Press |
| record_format | Article |
| series | Clinical and Experimental Obstetrics & Gynecology |
| spelling | doaj.art-e8b09dd6234f4115a5277c0ecb2eb3e32022-12-28T06:16:15ZengIMR PressClinical and Experimental Obstetrics & Gynecology0390-66632022-12-01491227110.31083/j.ceog4912271S0390-6663(22)01928-5Establishment of a New Equation for Ultrasonographic Estimated Foetal Weight in Chongqing: A Prospective StudyChenhuizi Wu0Jianfeng Sun1XiaoJing Dong2Liuyun Cai3Xinru Deng4Fenglan Zhang5Yang Shu6Maochao Zhang7Xiaodong Luo8Department of Obstetrics and Gynaecology, The Second Affiliated Hospital of Chongqing Medical University, 400010 Chongqing, ChinaChongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, 400044 Chongqing, ChinaDepartment of Obstetrics and Gynaecology, The Second Affiliated Hospital of Chongqing Medical University, 400010 Chongqing, ChinaDepartment of Obstetrics and Gynaecology, The Second Affiliated Hospital of Chongqing Medical University, 400010 Chongqing, ChinaDepartment of Obstetrics and Gynaecology, The Second Affiliated Hospital of Chongqing Medical University, 400010 Chongqing, ChinaDepartment of Obstetrics and Gynaecology, The Second Affiliated Hospital of Chongqing Medical University, 400010 Chongqing, ChinaDepartment of Obstetrics and Gynaecology, The Second Affiliated Hospital of Chongqing Medical University, 400010 Chongqing, ChinaDepartment of Obstetrics and Gynaecology, The Second Affiliated Hospital of Chongqing Medical University, 400010 Chongqing, ChinaDepartment of Obstetrics and Gynaecology, The Second Affiliated Hospital of Chongqing Medical University, 400010 Chongqing, ChinaBackground: Variations in foetal growth between populations should not be ignored, and a single universal standard is not appropriate for everyone. Therefore, it is necessary to develop a new ultrasound estimation equation that adapts better to regional population characteristics. The purpose of this study was to create a new equation for ultrasound estimation of foetal weight according to the local population in Chongqing and compare it with representative equations. Methods: This prospective study included data on pregnant women who gave birth to a child at full term in our hospital from December 2016 to November 2019. Foetal ultrasound parameters included biparietal diameter (BPD), head circumference (HC), abdominal circumference (AC), and femur diaphysis length (FDL). The foetal weight compensation model was established by using the second-order linear regression model, and then, the foetal weight equation was established by utilizing the multiple reverse elimination regression technique. Last, the absolute error and relative error were used to compare the accuracy of the equations established in this study with representative equations. Results: Through the foetal weight compensation equation, the new equation suitable for Chongqing foetuses was successfully established with the variables of BPD, HC, AC, and FDL. The following foetal weight prediction equation was established in this study: Log10(EFW) = 3.002741 + 0.00005944 × (BPD2) + 0.00000222 × (HC2) – 0.000002078 × (AC2) + 0.00004262 × (FDL2) – 0.008753 × BPD – 0.000884 × HC + 0.003206 × AC – 0.002894 × FDL (BPD: mm; HC: mm; AC: mm; FDL: mm). In the sets established by the 1925 data, the mean absolute error and standard deviation of the estimation error of the new equation were 178.9 g and 140.3 g respectively. In the validation sets established with 300 data points, the mean absolute error and standard deviation of the new equation were 173.08 g and 128.59 g respectively. Compared with representative equations, the mean absolute error and the standard deviation of the new equation were the lowest. The equation established in this study better predicted foetal weight (p < 0.001). Conclusions: According to the local population characteristics of Chongqing, this study created a foetal weight estimation equation that is more accurate and suitable. This equation is clinically valuable for the monitoring and management of foetal weight.https://www.imrpress.com/journal/CEOG/49/12/10.31083/j.ceog4912271estimated foetal weightprenatal ultrasoundchongqing foetusesregression equationbirth weight |
| spellingShingle | Chenhuizi Wu Jianfeng Sun XiaoJing Dong Liuyun Cai Xinru Deng Fenglan Zhang Yang Shu Maochao Zhang Xiaodong Luo Establishment of a New Equation for Ultrasonographic Estimated Foetal Weight in Chongqing: A Prospective Study Clinical and Experimental Obstetrics & Gynecology estimated foetal weight prenatal ultrasound chongqing foetuses regression equation birth weight |
| title | Establishment of a New Equation for Ultrasonographic Estimated Foetal Weight in Chongqing: A Prospective Study |
| title_full | Establishment of a New Equation for Ultrasonographic Estimated Foetal Weight in Chongqing: A Prospective Study |
| title_fullStr | Establishment of a New Equation for Ultrasonographic Estimated Foetal Weight in Chongqing: A Prospective Study |
| title_full_unstemmed | Establishment of a New Equation for Ultrasonographic Estimated Foetal Weight in Chongqing: A Prospective Study |
| title_short | Establishment of a New Equation for Ultrasonographic Estimated Foetal Weight in Chongqing: A Prospective Study |
| title_sort | establishment of a new equation for ultrasonographic estimated foetal weight in chongqing a prospective study |
| topic | estimated foetal weight prenatal ultrasound chongqing foetuses regression equation birth weight |
| url | https://www.imrpress.com/journal/CEOG/49/12/10.31083/j.ceog4912271 |
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