| 摘要: |
| 目的 应用经会阴三维超声联合实时剪切波弹性成像（SWE）定量评估初产妇及未育女性肛提肌裂孔面积变化及耻骨直肠肌（PR）的弹性，探讨妊娠分娩对肛提肌裂孔及PR 弹性和收缩功能的影响。资料与方法 选择2017 年12 月－2018年11 月在我院产后6~8 周检查的首次经阴道分娩产妇50例为产后组，同期选取健康未育女性41名为对照组。应用经会阴三维超声测量静息及最大收缩状态下肛提肌裂孔面积，比较2组肛提肌裂孔面积；应用SWE分别在静息及最大收缩状态下测量PR前部的杨氏模量值，比较2 组PR 弹性及收缩功能的差异，并进行比较。结果 产后组静息状态及最大缩肛状态下肛提肌裂孔面积均较对照组大，差异有统计学意义（P<0.05）。产后组静息状态及最大缩肛状态下弹性参数较对照组减小，差异有统计学意义（P<0.05）。 结论 妊娠及经阴道分娩对PR弹性及收缩功能存在一定损伤。 |
| 关键词: 首次经阴道分娩 经会阴三维超声 肛提肌裂孔 实时剪切波弹性成像技术 耻骨直肠肌 肌收缩 弹性。 |
| DOI： |
| 投稿时间：2018-12-03修订日期：2018-12-24 |
| 基金项目:广西医药卫生自筹经费计划课题（Z20180172） |
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| Perineal three-dimensional ultrasound combined with shear wave elastography was used to evaluate the effect of childbirth on levator ANI muscle |
| jiangyunxiu |
| (Liutie center Hospital of Liuzhou City) |
| Abstract: |
| Objective Transperineal three-dimensional ultrasonography combined with real-time shear wave elastography (SWE) was used to quantitatively evaluate the changes in the hiatus area of the levator ANI muscle and the elasticity of the puborectalis muscle (PR) in primipara and childless women，To investigate the effect of pregnancy and delivery on the laceration of levator ANI muscle, PR elasticity and contractile function. Materials and Methods 50 primiparas who came to the Liutie center Hospital of Liuzhou City to examine at postpartum 6-8 weeks from December 2017 to January 2018 were enrolled, At the same time, 41 healthy nulliparous women were selected as the control group. Three dimensional transperineal ultrasound was used to measure the hiatus area of levator ANI muscle under resting and maximum contraction state, and the hiatus area of levator ANI muscle in the two groups was compared.The Young’s. modulus of PR was measured with SWE at resting-state and during maximal contraction respectively. Differences of PR elasticity and contraction function in the 2 groups were compared. Results. The hiatus area of the levator ANI muscle in the postpartum group under the resting state and the maximal anal retraction state was larger than that in the control group, and the difference was statistically significant (P<0.05).The elasticity parameters of spontaneous vaginal delivery group were less than those in the control group. The difference was of statistical significance (P<0.05).Conclusion Pregnancy and vaginal delivery have certain damage to the elasticity and contractility of PR. |
| Key words: First vaginal delivery Transperineal three-dimensional ultrasound Hiatus of levator ANI muscle Pelvic floor ultrasound Rea time shear wave elastography Puborectalis muscle Muscle contraction Elasticity。 |
