宫颈应变比弹性成像与成功引产的预测

IF 2.1 4区医学 Q2 OBSTETRICS & GYNECOLOGY

European journal of obstetrics, gynecology, and reproductive biology Pub Date : 2025-04-08 DOI:10.1016/j.ejogrb.2025.113972

Maria Strandbo Schmidt Jensen , Christine Rohr Thomsen , Mogens Hinge , Niels Uldbjerg , Puk Sandager

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引用次数: 0

摘要

背景：引产前，通常通过Bishop评分或改良的Bishop评分来评估宫颈，以预测引产的持续时间和成功。然而，需要更客观的方法。应变比弹性学是一种评估组织弹性模量的技术。使用应变比弹性成像与参考材料相结合，可以实现子宫颈的定量弹性成像。目的探讨应变比弹性图测定的宫颈组织表观弹性模量与引产后宫颈扩张时间的关系。方法对22例接受引产的未分娩孕妇进行分析。从所有参与者获得Bishop评分，超声测量颈椎长度和应变比弹性图评估弹性模量。主要结局为引产至主动产程和主动产程至宫颈完全扩张的宫颈扩张时间。结果应变比与引产至主动产程时间R2: 0.024 （P = 0.492）无相关性，应变比与主动产程至宫颈完全扩张时间R2: 0.180有相关性，但无统计学意义（P = 0.063）。宫颈长度与引产至活产期时间相关，R2: 0.134 (P = 0.003)，但与活产至完全扩张期时间无关，R2: 0.015 （P = 0.610）。结论弹性模量对于预测从产程到宫颈完全扩张的时间可能很重要，而宫颈长度对于从引产到产程的时间似乎更重要。

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Strain ratio elastography of the uterine cervix and prediction of successful labor induction

Background

Before labor induction, the uterine cervix is often evaluated by the Bishop score, or a modified Bishop score, to predict the duration and success of induction. However, more objective methods are wanted. Strain ratio elastography is a technique that evaluates the elastic modulus of a tissue. Using strain ratio elastography in combination with a reference material enables quantitative elastography of the uterine cervix.

Objective

To evaluate the associations between the apparent elastic modulus of the cervical tissue assessed by strain ratio elastography and the cervical dilation time after labor induction.

Methods

Twenty-two nulliparous pregnant women admitted for labor induction were included. A Bishop score, a cervical length measured by ultrasound and an elastic modulus evaluated by strain ratio elastography were obtained from all participants. Primary outcomes were cervical dilation time from labor induction to active labor and from active labor to full cervical dilation.

Results

The strain ratio was not associated with the time from labor induction to active labor R²: 0,024 (P = 0.492), but there was a small association between strain ratio and time from active labor to full cervical dilatation R²: 0.180, however not significant (P = 0.063). The cervical length was associated with time from labor induction to active phase R²: 0.134 (P = 0.003), but not with time from active labor to full dilatation R²: 0.015 (P = 0.610).

Conclusions

The results indicate a possible importance of the elastic modulus for predicting time from active labor to full cervical dilatation, whereas the cervical length seems to be of greater importance for time from labor induction to active labor.

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来源期刊

European journal of obstetrics, gynecology, and reproductive biology 医学-妇产科学

CiteScore

4.60

自引率

3.80%

发文量

898

审稿时长

8.3 weeks

期刊介绍： The European Journal of Obstetrics & Gynecology and Reproductive Biology is the leading general clinical journal covering the continent. It publishes peer reviewed original research articles, as well as a wide range of news, book reviews, biographical, historical and educational articles and a lively correspondence section. Fields covered include obstetrics, prenatal diagnosis, maternal-fetal medicine, perinatology, general gynecology, gynecologic oncology, uro-gynecology, reproductive medicine, infertility, reproductive endocrinology, sexual medicine and reproductive ethics. The European Journal of Obstetrics & Gynecology and Reproductive Biology provides a forum for scientific and clinical professional communication in obstetrics and gynecology throughout Europe and the world.