Determining the best time to measure cervical length during fetal anatomy surveys

Optimal Timing of Routine Cervical Length Measurements During Anatomy Survey

NA · Henry Ford Health System · NCT06822647

This study is testing the best time to measure cervical length during ultrasounds in pregnant people to see if it makes a difference in accuracy, while also comparing two types of ultrasound images.

Quick facts

PhaseNA
Study typeInterventional
Enrollment550 (estimated)
SexFemale
SponsorHenry Ford Health System (other)
Locations1 site (Detroit, Michigan)
Trial IDNCT06822647 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to identify the optimal timing for cervical length measurements during fetal anatomy surveys in pregnant individuals. It compares measurements taken at the beginning versus the end of the ultrasound exam to see which timing yields more accurate results. Additionally, the study evaluates the effectiveness of sepia-filtered ultrasound images against conventional grayscale images in meeting established accuracy criteria. Participants will be randomized into two groups for cervical length measurement and will undergo both imaging techniques.

Who should consider this trial

Good fit: Ideal candidates are pregnant individuals between 16 weeks and 23 weeks + 6 days of gestation presenting for a fetal anatomy survey at Henry Ford Health.

Not a fit: Patients with a history of preterm delivery or cervical insufficiency will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance the accuracy of cervical length assessments, potentially reducing the risk of preterm birth.

How similar studies have performed: While this approach is novel in its specific focus on timing and imaging techniques, similar studies have shown the importance of accurate cervical length measurement in predicting preterm birth.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Pregnant individuals between 16 weeks and 23 weeks + 6 days of gestation.
* Presenting for a fetal anatomy survey at Henry Ford Health MFM ultrasound units.
* Consent to a transvaginal cervical length measurement as part of routine care.
* Agreement to participate in the study, including randomization for the timing of cervical length measurement.

Exclusion Criteria:

* History of preterm delivery.
* Diagnosis of cervical insufficiency.
* Declines or unable to consent to a transvaginal cervical length measurement.
* Patients receiving care at non-Henry Ford Health radiology clinics.

Where this trial is running

Detroit, Michigan

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Cervical Insufficiency, Preterm Birth, Cervical Length Measurement

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.