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| Value of the signs score by ultrasound combined with vascularization parameters by three-dimensional energy Doppler for diagnosing placenta previa complicated with placenta implantation during the third trimester of pregnancy |
| The Seventh People's Hospital of Zhengzhou, Henan Province, 450000 |
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Abstract To evaluate the value of the signs score by ultrasound combined with vascularization parameters by three-dimensional energy Doppler for diagnosing placenta previa complicated with placenta implantation of pregnant women during the third trimester of pregnancy. Methods: The clinical data of 71 pregnant women with placenta previa during the third trimester of pregnancy from June 2019 to October 2020 were collected retrospectively, which included 19 women with placenta implantation in group A and 52 women without placenta implantation in group B. Three-dimensional energy Doppler and virtual organ computer-aided analysis technology were used to compare the values of the vascularization parameters, such as vascularization index (VI), flow index (FI), and vascular flow index (VFI), of the women between the two groups. Receiver operator characteristic curve (ROC) was used to analyze the value of the VI, FI, and VFI values of the women for diagnosing their placenta previa and placenta implantation. And the values of the signs score by ultrasound and the vascularization parameters values by three-dimensional energy Doppler for diagnosing placenta implantation of the women were evaluated. Results: There were significant differences in the values of VI, FI, and VFI of the women between the two groups (P＜0.05). The values of VI, FI, and VFI of the women had certain diagnostic values for placenta previa and placenta implantation. The area under curve (AUC) of ROC of VI value, FI value, and VFI value for diagnosing placenta previa and placenta implantation were 0.831, 0.696, and 0.735, respectively, and their critical values were 31.60, 33.25, and 16.05, respectively. There was no significant difference in the diagnostic consistency between the signs score or the vascularization parameters value and the pathological diagnosis, and between the signs score combined with vascularization parameters values and the pathological diagnosis (P＞0.05), and the Kappa values of which were 0.744, 0.584, and 0.856, respectively. The efficiency of the signs score combined with vascularization parameters value for diagnosing placenta previa and placenta implantation was higher, with the sensitivity of 89.5%, the specificity of 96.2%, the positive predictive value of 89.5%, and the negative predictive value of 96.2%. Conclusion: The signs score by ultrasound combined with vascularization parameters by three-dimensional energy Doppler of pregnant women during the third trimester of pregnancy for diagnosing their placenta previa and placenta implantation have certain qualitative and quantitative value, which can provide the reference evidences for choosing the time limit of treatment and treatment mode of the disease further.
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| Cite this article: |
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WANG Yarui. Value of the signs score by ultrasound combined with vascularization parameters by three-dimensional energy Doppler for diagnosing placenta previa complicated with placenta implantation during the third trimester of pregnancy[J]. 中国计划生育学杂志, 2022, 30(4): 895-.
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| URL: |
| https://www.zgjhsyx.com/EN/ OR https://www.zgjhsyx.com/EN/Y2022/V30/I4/895 |
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