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Stiffness of cervix as a predictor of preterm labor onset using transvaginal elastgraphy.

Research Project

Project/Area Number 25861465
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Obstetrics and gynecology
Research InstitutionAkita University

Principal Investigator

Miura Hiroshi  秋田大学, 医学部, 助教 (80375302)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords早産リスク / エラストグラム / 切迫早産 / 子宮頸管
Outline of Final Research Achievements

We assessed the value of cervical tissue strain (TS) measured with elastography in comparison with the transvaginal cervical length (CL) and Bishop’s score (BS) for the prediction of the onset of spontaneous labor at term. Transvaginal cervical elastography may be a useful tool for predicting the onset of spontaneous labor in 10 days. With fewer days between examination and labor onset, CL and BS tended to be more sensitive predictors than TS. Using a total of 520 data gained by elastography, we compared cervical TS between women who were hospitalized by threatened preterm labor and women with no symptom of labor. The optimal cutoff value of cervical TS for predicting the onset of threatened preterm labor was 1.5, the odds ratio is 2.48 (95% CI: 1.28-4.79).
We made the new device which can measure stiffness of cervix directly. The intra- and inter-assay coefficients of a total of 100 examinations using this device were 0.650 and 0.641, respectively.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (6 results)

All 2016 2015 2013 Other

All Journal Article (1 results) Presentation (5 results)

  • [Journal Article] 早産リスク評価における、エラストグラムの有用性の検討2015

    • Author(s)
      三浦広志
    • Journal Title

      産科と婦人科

      Volume: 82 Pages: 556-557

    • Related Report
      2014 Research-status Report
  • [Presentation] 筋硬度計を用いた子宮頸管硬度定量化の試み2016

    • Author(s)
      三浦広志 佐藤朗 藤嶋明子 亀山沙恵子 下田勇輝 畠山佑子 寺田幸弘
    • Organizer
      第52回日本周産期・新生児医学会
    • Place of Presentation
      富山
    • Year and Date
      2016-07-10
    • Related Report
      2015 Annual Research Report
  • [Presentation] 産科医からみた子宮頸管の役割2015

    • Author(s)
      三浦広志
    • Organizer
      第57回日本婦人科腫瘍学会
    • Place of Presentation
      岩手
    • Year and Date
      2015-08-07
    • Related Report
      2015 Annual Research Report
  • [Presentation] Stiffness of cervix as a predictor of lador onset using transvaginal elastgraphy2013

    • Author(s)
      Miura H
    • Organizer
      23rd World Congress on Ultrasound in Obstetrics and Gynecology Incorporating the ASUM/43rd Annual Scientific Meeting
    • Place of Presentation
      オーストラリア/シドニー
    • Related Report
      2013 Research-status Report
  • [Presentation] エラストグラムを用いた子宮頸管硬度観察は分娩開始を予測できるか2013

    • Author(s)
      三浦広志、佐藤朗、富樫嘉津恵、菅原多恵、寺田幸弘
    • Organizer
      第49回日本周産期・新生児医学会
    • Place of Presentation
      横浜
    • Related Report
      2013 Research-status Report
  • [Presentation] 癒着胎盤の診断におけるエラストグラムの有用性の検討

    • Author(s)
      三浦広志
    • Organizer
      公益財団法人神澤医学研究進行財団第15回講演会
    • Place of Presentation
      東京
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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