ArticleJournal of perinatal medicine2014
Cervical strain determined by ultrasound elastography and its association with spontaneous preterm delivery.
Article in Journal of perinatal medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
26 citing papers in PubMed, 1 synthesis or guideline pooled it, 79 citations in OpenAlex.
- Diagnostic accuracy of cervical elastography in predicting preterm delivery: A systematic review and meta-analysis.Medicine · 2019Pooled it
- Strain at the internal cervical os assessed with quasi-static elastography is associated with the risk of spontaneous preterm delivery at ≤34 weeks of gestation.Journal of perinatal medicine · 2015Trial
- A comparative study of shear wave elastography on preterm birth risk in women with natural pregnancies andQuantitative imaging in medicine and surgery · 2026Article
- Cervical Elastography as a Predictive Tool for Preterm Birth: A Systematic Review and Meta-analysis.Cureus · 2025Review
- Cervical elastography at 18 to 23 weeks to predict spontaneous preterm birth in individuals with a history of preterm birth.AJOG global reports · 2025Article
- Article
- Prediction Model for Successful Induction of Labor by Fetal Middle Cerebral Artery Pulsatility Index and Obstetric Factors in Term Pregnancy: A Prospective Cohort Study.Obstetrics and gynecology international · 2025Article
- Recommendations for strain elastography of the uterine cervix.Archives of gynecology and obstetrics · 2024Review
- Prediction model for successful induction of labor by cervical strain elastography diagnosed at late-term pregnancy in nulliparous women: a prospective cohort study.BMC pregnancy and childbirth · 2023Article
- Nomogram Incorporating Multimodal Transvaginal Ultrasound Assessment at 20 to 24 Weeks' Gestation for Predicting Spontaneous Preterm Delivery in Low-Risk Women.International journal of women's health · 2022Article
- The Feasibility of Cervical Elastography in Predicting Preterm Delivery in Singleton Pregnancy with Short Cervix Following Progesterone Treatment.International journal of environmental research and public health · 2021Article
- Predictive value of cervical length by ultrasound and cervical strain elastography in labor induction at term.The Journal of international medical research · 2021Observational
- Why Are Viscosity and Nonlinearity Bound to Make an Impact in Clinical Elastographic Diagnosis?Sensors (Basel, Switzerland) · 2020Review
- The predictive value of cervical shear wave elastography in the outcome of labor induction.Acta obstetricia et gynecologica Scandinavica · 2020Observational
- Photoacoustic imaging of the uterine cervix to assess collagen and water content changes in murine pregnancy.Biomedical optics express · 2019Article
- A soft cervix, categorized by shear-wave elastography, in women with short or with normal cervical length at 18-24 weeks is associated with a higher prevalence of spontaneous preterm delivery.Journal of perinatal medicine · 2018Article
- New techniques in evaluation of the cervix.Seminars in perinatology · 2017Review
- Cervical elastography during pregnancy: clinical perspectives.International journal of women's health · 2017Review
- Elastographic measurement of the cervix during pregnancy: Current status and future challenges.Obstetrics & gynecology science · 2017Review
- Cervical elastography during pregnancy: a critical review of current approaches with a focus on controversies and limitations.Journal of medical ultrasonics (2001) · 2016Review
Corrections and comments
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
Abstract
objectiveTo determine if there is an association between cervical strain, evaluated using ultrasound elastography, and spontaneous preterm delivery (sPTD) <37 weeks of gestation.
methodsOne hundred and eighty nine (189) women at 16-24 weeks of gestation were evaluated. Ultrasound elastography was used to estimate cervical strain in three anatomical planes: one mid-sagittal in the same plane used for cervical length measurement, and two cross sectional images: one at the level of the internal cervical os, and the other at the level of the external cervical os. In each plane, two regions of interest (endocervix and entire cervix) were examined; a total of six regions of interest were evaluated.
resultsThe prevalence of sPTD was 11% (21/189). Strain values from each of the six cervical regions correlated weakly with cervical length (from r=-0.24, P<0.001 to r=-0.03, P=0.69). Strain measurements obtained in a cross sectional view of the internal cervical os were significantly associated with sPTD. Women with strain values ≤25th centile in the endocervical canal (0.19) and in the entire cervix (0.14) were 80% less likely to have a sPTD than women with strain values >25th centile [endocervical: odds ratio (OR) 0.2; 95% confidence interval (CI), 0.03-0.96; entire cervix: OR 0.17; 95% CI, 0.03-0.9]. Additional adjustment for gestational age, race, smoking status, parity, maternal age, pre-pregnancy body mass index, and previous preterm delivery did not appreciably alter the magnitude or statistical significance of these associations. Strain values obtained from the external cervical os and from the sagittal view were not associated with sPTD.
conclusionLow strain values in the internal cervical os were associated with a significantly lower risk of spontaneous preterm delivery <37 weeks of gestation.
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Registered trials
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