Volume 24 Issue 6
Jun.  2026
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Article Navigation >  Chinese Journal of General Practice  > 2026  >  24(6): 1002-1005
ZHANG Hanmei, LIU Mingyang, LUO Qi, LI Jiaxin, CHENG Yuting, LIU Xueqin, ZHOU Lihua, CHENG Juan. Application of shear wave elastography in perineal assessment during vaginal delivery[J]. Chinese Journal of General Practice, 2026, 24(6): 1002-1005. doi: 10.16766/j.cnki.issn.1674-4152.004540
Citation: ZHANG Hanmei, LIU Mingyang, LUO Qi, LI Jiaxin, CHENG Yuting, LIU Xueqin, ZHOU Lihua, CHENG Juan. Application of shear wave elastography in perineal assessment during vaginal delivery[J]. Chinese Journal of General Practice, 2026, 24(6): 1002-1005. doi: 10.16766/j.cnki.issn.1674-4152.004540
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Application of shear wave elastography in perineal assessment during vaginal delivery

doi: 10.16766/j.cnki.issn.1674-4152.004540
  • 1.

    Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, China

Funds:

 KJ2021A0254

  • Received Date: 2025-06-25
    Available Online: 2026-11-10
    Abstract
  •   Objective  To employ shear wave elastography (SWE) technology to quantitatively measure the perineal body tissue in late-pregnant women, analyze its efficacy in assessing perineal body elasticity, and explore its application value in the clinical perineal assessment for vaginal delivery.  Methods  A prospective study design was employed. Convenience sampling was employed to select 197 late-pregnant women who met the inclusion criteria and underwent prenatal examinations at the First Affiliated Hospital of Anhui Medical University from March 2022 to November 2023. SWE was used to measure perineal body elasticity. Their delivery outcomes were followed up, and clinical perineal assessment indicators were collected for those who underwent vaginal delivery. After excluding cases involving forceps-assisted delivery, prolonged second stage of labor, and acute fetal distress, participants were categorized into an episiotomy group (53 cases) and a non-episiotomy group (50 cases) based on whether an episiotomy was performed during vaginal delivery. The perineal assessment indicators were compared between the two groups. Using episiotomy as the dependent variable, logistic regression was performed, a combined prediction model was constructed, and a receiver operating characteristic (ROC) curve was plotted to analyze the predictive value of SWE measurements for episiotomy.  Results  Among the clinical perineal assessment parameters, perineal body elasticity showed a statistically significant difference (P < 0.05) between the episiotomy and non-episiotomy groups. There were statistically significant differences (P < 0.05) in the Max, Min, and Mean values of SWE measurements between the two groups. The areas under the ROC curve (AUC, 95% CI) for predicting the necessity of episiotomy using SWE Mean value, clinical elasticity assessment, and their combination were 0.647 (0.538-0.756), 0.796 (0.705-0.887), and 0.829 (0.749-0.908), respectively. The corresponding sensitivities were 0.904, 0.904, and 0.885; specificities were 0.674, 0.630, and 0.674; and Youden indices were 0.230, 0.534, and 0.559. The predictive efficacy of the Mean value combined with clinical elasticity was superior to that of either clinical elasticity or the Mean value alone.  Conclusion  Clinical perineal body elasticity assessment in combination with SWE measurement offers enhanced assessment accuracy and shows favorable application prospects.

     

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