Evaluation of Transperineal Ultrasound Technic for Diagnostic Shorted Cervical Length for Pregnant Women (2nd and 3rd Trimester) Compared to Endovaginal Technic (Gold Standard)

Endovaginal ultrasound is currently the gold standard to diagnose a shorted cervical length and, by extension, assess the risk of preterm labor. The major inconvenient is that this is an invasive method of diagnosis that tends to be poorly accepted by some patients. This study aims to evaluate the accuracy of a noninvasive transperineal ultrasound cervical measurement in comparison to the endovaginal technic in 2nd and 3nd trimester pregnant women where a cervical ultrasound is indicated.

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Key information

Conditions

Ultrasound Transperineal

Age range

18 year and older

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

CHU Amiens

Amiens, 80480, France

About this study

The cervical length is a crucial part of the diagnostic of premature labor. The gold standard technic is the endovaginal ultrasound. This is a technic with good reproducibility and good precision. Some authors have found the transperineal technic to present the same characteristics, without being as invasive. The aim of the study was to compare the results of the less invasive technic to the current invasive gold standard in pregnant women who consult for contraction, or for whom cervical modification is suspected in order to determine whether the former could replace the latter.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Pregnant women between 2nd and 3rd trimester consulting in obstetric emergency for whom a cervical ultrasound is indicated

Exclusion criteria

minor patients
mentally deficient persons

Treatment and study plan

cervical ultrasound

Other

All volunteer patients for whom a cervical ultrasound is indicated will have with a first operator the performing the usual technic, and with a second operator performing the trans perineal technic without being aware of the first measurement.

Primary outcomes

difference of measurement of the uterine cervix

Time frame: at day 0

difference of measurement of the uterine cervix will be done by analysing the variation between the transperineal measurement and endovaginal evaluation of the uterine cervix. Length will be measured in millimetres

Sponsors and collaborators

Lead sponsor

Centre Hospitalier Universitaire, Amiens

Other

Registry information

Acronym: ECHO

Important dates

Study start: 2020
Primary completion: 2020
Study completion: 2021
First posted: Apr 10, 2020
Registry last updated: Sep 19, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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Completed