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Optimal Timing of Cervical Length Measurements During Anatomy Survey

This study is looking at the best time to measure your cervical length (CL) during your routine fetal anatomy ultrasound. Cervical length measurements help doctors identify pregnant individuals who might be at risk for preterm birth (when a baby is born too early). Researchers want to see if measuring your CL at the beginning of the ultrasound, compared to the end, leads to more accurate results. They are also checking if using a special sepia-filtered image on the ultrasound improves accuracy. You can join if you are 16 to 23 weeks and 6 days pregnant, having your anatomy scan at Henry Ford Health, and agree to a transvaginal CL measurement.

Study design
This is a randomized controlled trial with a planned enrollment of 550 participants. Participants will be randomly assigned to have their cervical length measured at the beginning or end of their anatomy survey.
What's involved
You would have a transvaginal cervical length measurement as part of your routine care during your fetal anatomy survey. This measurement will be taken either at the beginning or the end of the survey.
Compensation
Not stated in the trial record.
Follow-up
Your cervical length measurement will be taken one time during your fetal anatomy survey, between 18-24 weeks of gestation.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT06822647

Optimal Timing of Routine Cervical Length Measurements During Anatomy Survey

Recruiting
NAAll AgesInterventionalPrevention
Henry Ford Health System
~550 participants
Updated 2026-03-09 on ClinicalTrials.gov
What's tested:Cervical Length Measurement at the Beginning of the Anatomy SurveyCervical Length Measurement at the End of the Anatomy Survey

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Proportion of Cervical Length Measurements Meeting CLEAR Criteria at time of anatomy scan, between 18-24 weeks gestation, measured by transvaginal ultrasound
Measured over At the time of the fetal anatomy survey, specifically 18-24wks (one-time measurement per participant).

Conditions

Cervical Insufficiency
Preterm Birth
Cervical Length Measurement

Explore related trials

Pregnancy

Where it's being run

1 sites across 1 states
Michigan1

Study leadership

  • Raminder Khangura, MD · PRINCIPAL_INVESTIGATOR · Henry Ford Health

Who to contact

Shelby A Masters, MD
[email protected]
313-671-5225
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Do you actually qualify for this trial?

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Eligibility criteria

Inclusion

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

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.

What this trial measures

  • Proportion of Cervical Length Measurements Meeting CLEAR Criteria at time of anatomy scan, between 18-24 weeks gestation, measured by transvaginal ultrasoundAt the time of the fetal anatomy survey, specifically 18-24wks (one-time measurement per participant).

    The primary outcome is the proportion of transvaginal cervical length measurements that meet all nine CLEAR (Cervical Length Education and Review) criteria for accuracy. This will assess whether timing (beginning vs. end of anatomy survey) impacts measurement reliability.